View source for List of Sigma Pi chapters

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{{Primary sources|date=February 2023}}
{{Use mdy dates|date=April 2025}}
This article lists the chapters of [[Sigma Pi]] [[Fraternities and sororities|fraternity]]. They are listed by the chapter's charter year, along with their [[Greek alphabet|Greek-letter]] designation and the school name. An official list of all chapters, both active and dormant, can be found by clicking the Sigma Pi Fraternity International website link to the List of Sigma Pi Chapters<ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapters.cfm |title=Sigma Pi Chapter Listing |publisher=Sigmapi.org |accessdate=10 January 2023 |url-status=dead |archive-url=https://web.archive.org/web/20081201172509/http://www.sigmapi.org/ChapterServices/chapters.cfm |archive-date=1 December 2008}}</ref>

==Chapters==
{{FratChapterStart}}
{{FratChapter
|Chapter Name = Alpha
|Founded = 1897
|School = [[Vincennes University]]
|Location = [[Vincennes, Indiana]]
|Status = Active
|Notes = Founded as Tau Phi Delta society on February 26, 1897.  Changed its name to Sigma Pi in 1907.  Inactive 1910–1965.
|Reference = <ref>{{cite web|url=http://www.rushsigmapi.com/ |title=Alpha Chapter of Sigma Pi Fraternity |publisher=Rushsigmapi.com |url-status=usurped |archive-url=https://web.archive.org/web/20070916093521/http://www.rushsigmapi.com/history.php |archive-date=16 September 2007 |accessdate=10 January 2023}}</ref>
}}{{FratChapter
|Chapter Name = Phi
|Founded = 1908
|School = [[University of Illinois]]
|Location = [[Urbana, Illinois]]
|Status = Inactive
|Notes = Founded during the winter of 1907-1908 as the Sphinx Club.  The letter Phi was chosen because the Sphinx club was informed they would be the 15th chapter of the organization to make the fraternity appear larger.<ref>Jacobsen, Harold (1946). THE SIGMA PI MANUAL. Sigma Pi Fraternity. pp. 42–43.</ref>  Inactive since 2016.
|Reference = <ref>{{cite magazine|last=Lewis|first=Byron R.|date=January 1915|volume=2|number=2|magazine=The Emerald of Sigma Pi|title=History Of Phi Chapter|pages=58–65|url=http://www.enivation.com/SigmaPi/archive/Emerald/1915/SP_EMERALD_VOL_2_NO_2_JAN_1915.pdf|url-status=usurped |archive-url=https://web.archive.org/web/20160820212443/http://www.enivation.com/SigmaPi/archive/Emerald/1915/SP_EMERALD_VOL_2_NO_2_JAN_1915.pdf |archive-date=20 August 2016}}</ref>
}}{{FratChapter
|Chapter Name = Gamma
|Founded = 1908
|School = [[Ohio State University]]
|Location = [[Columbus, Ohio]]
|Notes = Founded in 1904 as Phi Kappa Phi local fraternity. Inactive during World War II and 1995–2007. Inactive since 2020
|Status = Inactive
|Reference = <ref>{{cite web|url=http://ohiostatesigmapi.org/ |title=Gamma Colony of Sigma Pi Fraternity |website=ohiostatesigmapi.org/ |url-status=dead |archive-url=https://web.archive.org/web/20140108003531/http://ohiostatesigmapi.org/ |archive-date=8 January 2014 |accessdate=17 December 2008}}</ref><ref>{{cite magazine|last=Mattoon|first=Winford|date=May 1915|volume=2|number=3|magazine=The Emerald of Sigma Pi|title=A History of the Beginnings and Organization of Phi Kappa Phi and its Subsequent Installation as Gamma Chapter of Sigma Pi Fraternity|pages=160–163|url=http://www.enivation.com/SigmaPi/archive/Emerald/1915/SP_EMERALD_VOL_2_NO_3_MAY_1915.pdf|url-status=usurped |archive-url=https://web.archive.org/web/20160821001515/http://www.enivation.com/SigmaPi/archive/Emerald/1915/SP_EMERALD_VOL_2_NO_3_MAY_1915.pdf |archive-date=21 August 2016}}</ref>
}}{{FratChapter
|Chapter Name = Kappa
|Founded = 1909
|School = [[Temple University]]
|Location = [[Philadelphia, Pennsylvania]]
|Status = Inactive
|Notes = Founded as Sigma Delta local fraternity in 1909.  1931 charter was granted to Kappa Phi Psi local fraternity.  Inactive 1918–1931, 2003–2005 and since 2007.
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=85&grandChapterID=4 |title=Sigma Pi Chapter Information - Kappa Chapter |accessdate=22 October 2009 |url-status=dead |archive-url=https://web.archive.org/web/20110928084020/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=85&grandChapterID=4 |archive-date=28 September 2011 }}</ref><ref>{{cite magazine|last=Jacobsen|first=Harold|date=April 1931|volume=18|number=1|magazine=The Emerald of Sigma Pi|title=Renaissance|page=7|url=http://www.enivation.com/SigmaPi/archive/Emerald/1931/SP_EMERALD_VOL_18_NO_1_APR_1931.pdf|url-status=usurped |archive-url=https://web.archive.org/web/20180708104640/http://www.enivation.com/SigmaPi/archive/Emerald/1931/SP_EMERALD_VOL_18_NO_1_APR_1931.pdf |archive-date=8 July 2018 }}</ref>
}}{{FratChapter
|Chapter Name = Delta
|Founded = 1909
|School = [[University of Pennsylvania]]
|Location = [[Philadelphia, Pennsylvania]]
|Status = Inactive
|Notes =  Founded as Sigma Omicron Pi local fraternity in 1909.  Inactive 1913–1914, 1938–2002, 2005–2010, 2012–Current.
|Reference = <ref>{{cite magazine|date=July 1911|volume=1|number=1|magazine=The Emerald of Sigma Pi|title=A History of Delta Chapter|pages=13–17|url=http://www.enivation.com/SigmaPi/archive/Emerald/1911/SP_EMERALD_VOL_1_NO_1_JULY_1911.pdf|url-status=usurped |archive-url=https://web.archive.org/web/20150105083320/http://www.enivation.com/SigmaPi/archive/Emerald/1911/SP_EMERALD_VOL_1_NO_1_JULY_1911.pdf |archive-date=5 January 2015}}</ref><ref>{{cite web|url=http://www.sigmapi.org/chapterServices/chapter_info.cfm?id=243&grandChapterID=5 |title=Sigma Pi Chapter Information - Delta Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080517234651/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=243&grandChapterID=5 |archive-date=17 May 2008}}</ref>
}}{{FratChapter
|Chapter Name = Epsilon
|Founded = 1910
|School = [[Ohio University]]
|Location = [[Athens, Ohio]]
|Notes = Founded as Sigma Theta Gamma local fraternity in 1909.  Inactive 1943–1970 and 1982–2009. Permanently expelled from campus April 2019
|Status = Inactive
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/chapterServices/chapter_info.cfm?id=119&grandChapterID=6 |title=Sigma Pi Chapter Information - Epsilon Chapter |publisher=Sigmapi.org |accessdate=27 January 2010 |url-status=dead |archive-url=https://web.archive.org/web/20110717060946/http://www.sigmapi.org/chapterServices/chapter_info.cfm?id=119&grandChapterID=6 |archive-date=17 July 2011}}</ref>
}}{{FratChapter
|Chapter Name = Zeta
|Founded = June 1, 1912
|School = [[Ohio Northern University]]
|Location = [[Ada, Ohio]]
|Status = Active
|Notes =  Founded as Phi Chi Psi local fraternity in 1909.
|Reference = <ref>{{cite web|url=http://www.onu.edu/org/sigmapi/ |title=Zeta Chapter of Sigma Pi Fraternity |publisher=Onu.edu |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20090420232251/http://www.onu.edu/org/sigmapi/ |archive-date=20 April 2009}}</ref>
}}{{FratChapter
|Chapter Name = Eta
|Founded = 1912
|School = [[Purdue University]]
|Location = [[West Lafayette, Indiana]]
|Status = Active
|Notes = Oldest chapter in continuous existence.  Founded as the Minuet Club in 1898.
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/chapterServices/chapter_info.cfm?id=4&grandChapterID=8 |title=Sigma Pi Chapter Information - Eta Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080110164947/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=4&grandChapterID=8 |archive-date=10 January 2008}}</ref>
}}{{FratChapter
|Chapter Name = Theta
|Founded = 1912
|School = [[Pennsylvania State University]]
|Location = [[State College, Pennsylvania]]
|Status = Active
|Notes = Second oldest chapter in continuous existence.  Founded as the Corinthian Club in the Fall of 1906.
|Reference = <ref>{{cite web |url=http://www.sigmapipsu.com/ |title=Theta Chapter of Sigma Pi Fraternity |website=Sigmapipsu |access-date=12 January 2023 |url-status=dead |archive-url=https://web.archive.org/web/20040317154631/http://www.sigmapipsu.com/ |archive-date=17 March 2004}}</ref>
}}{{FratChapter
|Chapter Name = Iota
|Founded = 1913
|School = [[University of California, Berkeley]]
|Location = [[Berkeley, California]]
|Status = Active
|Notes = Founded as the Pirate's Club in 1894.  First chapter west of the Mississippi River.  Inactive during World War II and 1967–1975.
|Reference = <ref>{{cite web|url=http://www.active.iotasigmapi.org/iota.html |title=Iota Chapter of Sigma Pi Fraternity |publisher=Active.iotasigmapi.org |accessdate=17 December 2008|url-status=dead |archive-url=https://web.archive.org/web/20041208064550/http://www.active.iotasigmapi.org/iota.html |archive-date=8 December 2004}}</ref><ref name = "Emerald1975">{{cite magazine|date=Spring 1975|volume=62|number=1|magazine=The Emerald of Sigma Pi|title=Iota, Alpha Omega, Re-established|page=1|url=http://www.enivation.com/SigmaPi/archive/Emerald/1975/SP_EMERALD_VOL_62_NO_1_SPRING_1975.pdf|url-status=usurped |archive-url=https://web.archive.org/web/20160917215259/http://www.enivation.com/SigmaPi/archive/Emerald/1975/SP_EMERALD_VOL_62_NO_1_SPRING_1975.pdf |archive-date=17 September 2016}}</ref>
}}{{FratChapter
|Chapter Name = Lambda
|Founded = 1916
|School = [[Kenyon College]]
|Location = [[Gambier, Ohio]]
|Status = Inactive
|Notes =  Founded as Phi Gamma Phi local fraternity on June 1, 1915.  Inactive since 1970.
|Reference = <ref>{{cite magazine|last=Timberlake|first=P.W.|date=May 1941|volume=28|number=1|magazine=The Emerald of Sigma Pi|title=The Whole Show|page=9|url=http://www.enivation.com/SigmaPi/archive/Emerald/1941/SP_EMERALD_VOL_28_NO_1_MAY_1941.pdf|url-status=usurped |archive-url=https://web.archive.org/web/20170119052653/http://www.enivation.com/SigmaPi/archive/Emerald/1941/SP_EMERALD_VOL_28_NO_1_MAY_1941.pdf |archive-date=19 January 2017}}</ref><ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=120&grandChapterID=11 |title=Sigma Pi Chapter Information - Lambda Chapter |accessdate=22 October 2009|url-status=dead |archive-url=https://web.archive.org/web/20071027055040/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=120&grandChapterID=11 |archive-date=27 October 2007}}</ref>
}}{{FratChapter
|Chapter Name = Mu
|Founded = 1917
|School = [[Cornell University]]
|Location = [[Ithaca, New York]]
|Status = Active
|Notes = Founded as the St. L and J Club in 1895 then became Omega Delta local fraternity in 1913.  Inactive during World War II.
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/chapterServices/chapter_info.cfm?id=76&grandChapterID=12 |title=Sigma Pi Chapter Information - Mu Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080518001933/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=76&grandChapterID=12 |archive-date=18 May 2008}}</ref>
}}{{FratChapter
|Chapter Name = Nu
|Founded = 1918
|School = [[Franklin & Marshall College]]
|Location = [[Lancaster, Pennsylvania]]
|Status = Inactive
|Notes = Third oldest chapter in continuous existence.  Founded as the Franklin Club in 1897.
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/chapterServices/chapter_info.cfm?id=92&grandChapterID=13 |title=Sigma Pi Chapter Information - Nu Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080518003052/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=92&grandChapterID=13 |archive-date=18 May 2008}}</ref>
}}{{FratChapter
|Chapter Name = Xi
|Founded = 1918
|School = [[University of Iowa]]
|Location = [[Iowa City, Iowa]]
|Status = Active
|Notes = Founded as Pi Omicron local fraternity in 1913.  Inactive 1938–1961 and 1992–2005.
|Reference = <ref>{{cite web |url=https://www.sigmapiuiowa.com/about |title=Sigma Pi Chapter Information - Xi Chapter |website=Sigmapiuiowa |access-date=14 January 2023 |url-status=live |archive-url=https://web.archive.org/web/20201205215023/https://www.sigmapiuiowa.com/about |archive-date=5 December 2020}}</ref>
}}{{FratChapter
|Chapter Name = Omicron
|Founded = 1920
|School = [[Tulane University]]
|Location = [[New Orleans, Louisiana]]
|Status = Inactive
|Notes = Founded as Alpha Phi Omega local fraternity in 1919.  Inactive from 1942-1946, 1952-1964, and since 1973.
|Reference = <ref>{{cite magazine|date=Summer 1964|volume=48|number=1|magazine=The Emerald of Sigma Pi|title=Way Down South In New Orleans|pages=74–75|url=http://www.enivation.com/SigmaPi/archive/Emerald/1964/SP_EMERALD_VOL_51_NO_2_SUMMER_1964.pdf|url-status=usurped |archive-url=https://web.archive.org/web/20161220130558/http://www.enivation.com/SigmaPi/archive/Emerald/1964/SP_EMERALD_VOL_51_NO_2_SUMMER_1964.pdf |archive-date=20 December 2016}}</ref>
}}{{FratChapter
|Chapter Name = Pi
|Founded = 1920
|School = [[University of Utah]]
|Location = [[Salt Lake City, Utah]]
|Status = Inactive
|Notes = Founded as the Sphinx local fraternity.  Inactive since 1976.
|Reference = <ref>{{cite magazine|date=May 1920|volume=7|number=1|magazine=The Emerald of Sigma Pi|title=Details Of The Installation Of Omicron And Pi|pages=105–108|url=http://www.enivation.com/SigmaPi/archive/Emerald/1920/SP_EMERALD_VOL_7_NO_1A_MAY_1920.pdf|url-status=usurped |archive-url=https://web.archive.org/web/20180118122624/http://www.enivation.com/SigmaPi/archive/Emerald/1920/SP_EMERALD_VOL_7_NO_1A_MAY_1920.pdf |archive-date=18 January 2018}}</ref>
}}{{FratChapter
|Chapter Name = Rho
|Founded = 1921
|School = [[North Carolina State University]]
|Location = [[Raleigh, North Carolina]]
|Status = Active
|Notes = Fourth oldest chapter in continuous existence. Founded as Sigma Chi Gamma local fraternity in 1914.
|Reference = <ref>{{cite web|url=https://www.ncsusigmapi.com/history |title=Rho Chapter of Sigma Pi Fraternity |publisher=Ncsusigmapi.com |accessdate=14 January 2023|url-status=live |archive-url=https://web.archive.org/web/20220702042758/https://www.ncsusigmapi.com/history |archive-date=2 July 2022}}</ref>
}}{{FratChapter
|Chapter Name = Sigma
|Founded = 1922
|School = [[Iowa State University]]
|Location = [[Ames, Iowa]]
|Status = Inactive
|Notes = Founded as Affalata local fraternity in the Fall of 1914.  Changed its name to Lambda Sigma Psi local fraternity in January 1915.  Inactive 1943–1955 and 1974–1991.
|Reference = <ref>{{cite web|url=http://www.sigmapiisu.com// |title=Sigma Chapter of Sigma Pi Fraternity |publisher=www.sigmapiisu.com |accessdate=17 December 2008|url-status=usurped |archive-url=https://web.archive.org/web/20160109175649/http://www.sigmapiisu.com// |archive-date=9 January 2016}}</ref>
}}{{FratChapter
|Chapter Name = Tau
|Founded = 1922
|School = [[University of Wisconsin–Madison]]
|Location = [[Madison, Wisconsin]]
|Status = Active
|Notes = Founded as Alif Mim local fraternity in November of 1920.  Inactive 1932–2005.
|Reference = <ref>{{cite web|url=http://sigmapi.rso.wisc.edu/ |title=Tau Chapter of Sigma Pi Fraternity |publisher=Sigmapi.rso.wisc.edu |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080724182236/http://sigmapi.rso.wisc.edu/ |archive-date=24 July 2008 }}</ref>
}}{{FratChapter
|Chapter Name = Upsilon
|Founded = 1923
|School = [[University of California, Los Angeles]]
|Location = [[Los Angeles, California]]
|Status = Active
|Notes = Founded as the Ball and Chain Gang local fraternity on October 1, 1919.  It later changed its name to Delta Sigma Chi local fraternity.  Inactive during World War II and from ? to 1975.
|Reference = <ref>{{cite web|url=http://www.sigmapibruins.com |title=Upsilon Chapter of Sigma Pi Fraternity |publisher=Sigmapibruins.com |accessdate=14 January 2023|url-status=live |archive-url=https://web.archive.org/web/20220327151206/http://sigmapibruins.com/ |archive-date=27 March 2022}}</ref><ref>{{cite magazine|date=Summer 1975|volume=62|number=2|magazine=The Emerald of Sigma Pi|title=Upsilon Is Revived, Rechartered|page=1|url=http://www.enivation.com/SigmaPi/archive/Emerald/1975/SP_EMERALD_VOL_62_NO_2_SUMMER_1975.pdf|url-status=usurped |archive-url=https://web.archive.org/web/20160918184732/http://www.enivation.com/SigmaPi/archive/Emerald/1975/SP_EMERALD_VOL_62_NO_2_SUMMER_1975.pdf |archive-date=18 September 2016}}</ref>
}}{{FratChapter
|Chapter Name = Chi
|Founded = 1923
|School = [[University of Pittsburgh]]
|Location = [[Pittsburgh, Pennsylvania]]
|Status = Inactive
|Notes = Founded as Delta Upsilon Kappa local fraternity.  Inactive from 1932 to 1948, and since 1960.
|Reference = <ref>{{cite magazine|date=April 1923|volume=10|number=1|magazine=The Emerald of Sigma Pi|title=Chi Chapter Installed|page=16|url=http://www.enivation.com/SigmaPi/archive/Emerald/1923/SP_EMERALD_VOL_10_NO_1_APR_1923.pdf|url-status=usurped |archive-url=https://web.archive.org/web/20170323053209/http://www.enivation.com/SigmaPi/archive/Emerald/1923/SP_EMERALD_VOL_10_NO_1_APR_1923.pdf |archive-date=23 March 2017}}</ref>
}}{{FratChapter
|Chapter Name = Psi
|Founded = 1923
|School = [[Emory University]]
|Location = [[Atlanta, Georgia]]
|Status = Inactive
|Notes = Founded as Beta Pi local fraternity in October of 1921.  Inactive since 1959.
|Reference = <ref>{{cite magazine|last=Ward|first=J.C.|date=May 1934|volume=21|number=1|magazine=The Emerald of Sigma Pi|title=Psi's Tenth Year|pages=3–4|url=http://www.enivation.com/SigmaPi/archive/Emerald/1934/SP_EMERALD_VOL_21_NO_1_MAY_1934.pdf|url-status=usurped |archive-url=https://web.archive.org/web/20170208133639/http://www.enivation.com/SigmaPi/archive/Emerald/1934/SP_EMERALD_VOL_21_NO_1_MAY_1934.pdf |archive-date=8 February 2017}}</ref>
}}{{FratChapter
|Chapter Name = Omega
|Founded = 1924
|School = [[Oregon State University]]
|Location = [[Corvallis, Oregon]]
|Status = Active
|Notes = Founded as Gamma Sigma Kappa in the fall of 1920.  Inactive World War II and 1985–1990.
|Reference = <ref>{{cite web|url=http://sigmapiosu.com/home/ |title=Omega Chapter of Sigma Pi Fraternity |publisher=Sigmapiosu.com |accessdate=17 December 2008|url-status=dead |archive-url=https://web.archive.org/web/20160322064243/http://sigmapiosu.org/home |archive-date=22 March 2016}}</ref>
}}{{FratChapter
|Chapter Name = Beta
|Founded = 1924
|School = [[Indiana University]]
|Location = [[Bloomington, Indiana]]
|Status = Inactive
|Notes = Founded as Kappa Chi local fraternity in 1923.  Inactive during World War II and since 2021.
|Reference = <ref>{{cite web|url=http://betachaptersigmapi.org/ |title=Beta Chapter of Sigma Pi Fraternity |publisher=Betachaptersigmapi.org |accessdate=17 December 2008|url-status=dead |archive-url=https://web.archive.org/web/20150223150204/http://www.betachaptersigmapi.org/home |archive-date=23 February 2015}}</ref>
}}{{FratChapter
|Chapter Name = Alpha Beta
|Founded = 1925
|School = [[University of Michigan]]
|Location = [[Ann Arbor, Michigan]]
|Notes = Founded as the Index Club in 1920 then changed its name to Beta Phi Delta local fraternity.  Inactive 1933–1949, 1952–1966, 1970–2007, and since 2015.
|Status = Inactive
|Reference = <ref>{{cite magazine|date=July 1925|volume=12|number=2|magazine=The Emerald of Sigma Pi|title=Alpha Beta Chapter Installed At University Of Michigan|pages=81–86|url=https://greek.historyit.com/sigma_pi/reader.php?id=113}}</ref>
}}{{FratChapter
|Chapter Name = Alpha Gamma
|Founded = 1926
|School = [[University of Washington]]
|Location = [[Seattle, Washington]]
|Notes = Founded as Sigma Theta local fraternity in the spring of 1922.  Inactive since 1991.
|Status = Inactive
|Reference = <ref>{{cite magazine|date=April 1926|volume=13|number=1|magazine=The Emerald of Sigma Pi|title=Alpha Gamma Chapter is installed|page=3|url=https://greek.historyit.com/sigma_pi/reader.php?id=76}}</ref>
}}{{FratChapter
|Chapter Name = Alpha Delta
|Founded = 1926
|School = [[Auburn University]]
|Location = [[Auburn, Alabama]]
|Status = Active
|Notes =  Founded as Pi Omega Phi local fraternity in the spring of 1922.  Inactive during World War II.
|Reference = <ref>{{cite magazine|date=April 1926|volume=13|number=1|magazine=The Emerald of Sigma Pi|title=Alpha Delta Chapter is Installed|page=16|url=https://greek.historyit.com/sigma_pi/reader.php?id=76}}</ref>
}}{{FratChapter
|Chapter Name = Alpha Epsilon
|Founded = 1927
|School = [[Mercer University]]
|Location = [[Macon, Georgia]]
|Status = Inactive
|Notes = Founded as Gamma Alpha local fraternity in November 1923. Inactive since 1940
|Reference = <ref>{{cite magazine|date=April 1927|volume=14|number=1|magazine=The Emerald of Sigma Pi|title=The Installation of Alpha Epsilon|page=3|url=https://greek.historyit.com/sigma_pi/reader.php?id=80}}</ref>
}}{{FratChapter
|Chapter Name = Alpha Zeta
|Founded = 1930
|School = [[St. Lawrence University]]
|Location = [[Canton, New York]]
|Status = Inactive
|Notes = Founded as Delta Tau Phi local Fraternity. Inactive since 2001
|Reference = <ref>{{cite magazine|date=July 1930|volume=17|number=2|magazine=The Emerald of Sigma Pi|title=Alpha Zeta|page=89|url=https://greek.historyit.com/sigma_pi/reader.php?id=93}}</ref>
}}{{FratChapter
|Chapter Name = Alpha Eta
|Founded = 1931
|School = [[College of William & Mary]]
|Location = [[Williamsburg, Virginia]]
|Status = Active
|Notes = Founded as Alpha Psi local fraternity on November 15, 1921.  Inactive during World War II and from 1982–1990.
|Reference = <ref>{{cite magazine|last=Williams|first=Lloyd H.|date=July 1931|volume=18|number=2|magazine=The Emerald of Sigma Pi|title=History of Alpha Psi|page=65|url=https://greek.historyit.com/sigma_pi/reader.php?id=197}}</ref>
}}{{FratChapter
|Chapter Name = Alpha Theta
|Founded = 1931
|School = [[Beloit College]]
|Location = [[Beloit, Wisconsin]]
|Status = Inactive
|Notes = Inactive since 1979
|Reference = <ref>{{cite magazine|date=July 1931|volume=18|number=2|magazine=The Emerald of Sigma Pi|title=Alpha Theta Installed at Beloit College|url=https://greek.historyit.com/sigma_pi/reader.php?id=197}}</ref>
}}{{FratChapter
|Chapter Name = Alpha Iota
|Founded = 1933
|School = [[University of Missouri-Rolla]]
|Location = [[Rolla, Missouri]]
|Status = Active
|Notes =  Founded as The Prospector Club in 1913.  Inactive during World War II.
|Reference = <ref>{{cite magazine|last=Rodd|first=Charles C.|date=May 1933|volume=20|number=1|magazine=The Emerald of Sigma Pi|title=Installation of Alpha-Iota Chapter|pages=3–5|url=https://greek.historyit.com/sigma_pi/reader.php?id=204}}</ref>
}}{{FratChapter
|Chapter Name = Alpha Kappa
|Founded = 1936
|School = [[Louisiana State University]]
|Location = [[Baton Rouge, Louisiana]]
|Status = Inactive
|Notes =  Founded as Pi Alpha Omega local fraternity on December 15, 1924.  In 1935 it absorbed Theta Kappa Alpha local fraternity which had been founded in 1923. Inactive during World War II, from 1977 to 1986, and since 1994.
|Reference = <ref>{{cite magazine|date=Spring–Summer 1986|volume=74|number=1|magazine=The Emerald of Sigma Pi|title=Louisiana State Rechartered: Alpha Kappa Celebrates 50th anniversary|pages=5–6|url=https://greek.historyit.com/sigma_pi/reader.php?id=378}}</ref>
}}{{FratChapter
|Chapter Name = Alpha Lambda
|Founded = 1937
|School = [[Mississippi State University]]
|Location = [[Starkville, Mississippi]]
|Status = Inactive
|Notes =  First chapter founded as a colony.  Inactive from 1942 to 1946, 1952 to 1954, and since 1959.
|Reference = <ref>{{cite magazine|last=Harman|first=Steve|date=November 1954|volume=41|number=3|magazine=The Emerald of Sigma Pi|title=The Comeback|pages=138–139|url=https://greek.historyit.com/sigma_pi/reader.php?id=339}}</ref>
}}{{FratChapter
|Chapter Name = Alpha Mu
|Founded = 1938
|School = [[New Jersey Institute of Technology]]
|Location = [[Newark, New Jersey]]
|Status = Active
|Notes = Fifth oldest chapter in continuous existence.  Founded as Beta Alpha Theta local fraternity in December 1922.
|Reference = <ref>{{cite web|url=http://www.sigmapiam.org/ |title=Alpha Mu Chapter of Sigma Pi Fraternity |publisher=Sigmapiam.org |accessdate=14 January 2023 |url-status=live |archive-url=https://web.archive.org/web/20220513100311/http://www.sigmapiam.org/ |archive-date=13 May 2022}}</ref><ref>{{cite magazine|last=Hauser|first=James H.|date=February 1939|volume=25|number=4|magazine=The Emerald of Sigma Pi|title=Welcome! Alpha Mu!|pages=230–232|url=https://greek.historyit.com/sigma_pi/reader.php?id=267}}</ref>
}}{{FratChapter
|Chapter Name = Alpha Nu
|Founded = 1940
|School = [[Wake Forest University]]
|Location = [[Winston-Salem, North Carolina]]
|Status = Active
|Notes =  Sixth oldest chapter in continuous existence.  Founded as Delta Sigma Chi local fraternity in 1928.  Owns most Grand Sage Awards at 5 for Tier 2
|Reference = <ref>{{cite web |url=http://groups.wfu.edu/sigmapi/ |title=Alpha Nu Chapter of Sigma Pi Fraternity |publisher=Groups.wfu.edu |accessdate=14 January 2023 |archive-url=https://web.archive.org/web/20130615180011/http://groups.wfu.edu/sigmapi/ |archive-date=15 June 2013 |url-status=dead }}</ref>
}}{{FratChapter
|Chapter Name = Alpha Xi
|Founded = 1948
|School = [[California State University, Fresno]]
|Location = [[Fresno, California]]
|Status = Inactive
|Notes =  Inactive since 2019
|Reference = 
}}{{FratChapter
|Chapter Name = Alpha Omicron
|Founded = 1948
|School = [[University of California, Santa Barbara]]
|Location = [[Santa Barbara, California]]
|Status = Active
|Notes = Inactive 1972–1973, 1976–2008.
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=134&grandChapterID=38 |title=Sigma Pi Chapter Information - Alpha Omicron Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080517232734/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=134&grandChapterID=38 |archive-date=17 May 2008}}</ref>
}}{{FratChapter
|Chapter Name = Alpha Pi
|Founded = 1948
|School = [[Arkansas State University]]
|Location = [[Jonesboro, Arkansas]]
|Notes = Founded as Zeta Tau Zeta local fraternity in 1937. Inactive since 2022.
|Status = Inactive
|Reference = <ref>{{cite web|url=http://sigmapialphapi.com/ |title=Alpha Pi Chapter of Sigma Pi Fraternity |publisher=Sigmapialphapi.com |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20090210144617/http://sigmapialphapi.com/ |archive-date=10 February 2009}}</ref>
}}{{FratChapter
|Chapter Name = Alpha Rho
|Founded = 1948
|School = [[Missouri State University]]
|Location = [[Springfield, Missouri]]
|Notes = Founded as Chi Upsilon local fraternity in 1946.  Grand Sage Award in 1972.  Triad Awards in 1982, 1986, and 1988.  Dennis Day was Grand Sage from 1990 to 1992.  Inactive from 2008 to 2012.
|Status = Active
|Reference = <ref>{{cite magazine|last=Morris|first=E. Andrew|date=Summer 2014|volume=98|number=3|magazine=The Emerald of Sigma Pi|title=Alpha-Rho Chapter Charters At Missouri State|page=51|url=https://greek.historyit.com/sigma_pi/reader.php?id=174}}</ref>
}}{{FratChapter
|Chapter Name = Alpha Sigma
|Founded = 1948
|School = [[University of Arkansas]]
|Location = [[Fayetteville, Arkansas]]
|Notes =   Inactive 1977–2008.
|Status = Active
|Reference = <ref name="alpha-sigma">{{cite web|url=http://uagreeks.uark.edu/1684.htm |title=Alpha Sigma Chapter of Sigma Pi Fraternity |publisher=Uagreeks.uark.edu |accessdate=17 December 2008|url-status=dead |archive-url=https://web.archive.org/web/20100309003444/http://uagreeks.uark.edu/1684.htm |archive-date=9 March 2010}}</ref>
}}{{FratChapter
|Chapter Name = Alpha Tau
|Founded = 1948
|School = [[University of Southwestern Louisiana]]
|Location = [[Lafayette, Louisiana]]
|Notes = Inactive 1956-1995 and since 2000.
|Status = Inactive
|Reference = 
}}{{FratChapter
|Chapter Name = Alpha Upsilon
|Founded = 1948
|School = [[University of Rhode Island]]
|Location = [[Kingston, Rhode Island]]
|Status = Inactive
|Notes = Founded as Tau Sigma local fraternity in June 1944.  Inactive 1968–1983 and 1999–2004. Inactive since 2018
|Reference = <ref>{{cite magazine|date=November 1948|volume=35|number=3|magazine=The Emerald of Sigma Pi|title=Alpha-Upsilon Installation|pages=152–156|url=https://greek.historyit.com/sigma_pi/reader.php?id=185}}</ref>
}}{{FratChapter
|Chapter Name = Alpha Phi
|Founded = 1948
|School = [[University of Georgia]]
|Location = [[Athens, Georgia]]
|Status = Active
|Notes =  Inactive 1974–1981 and 1987–1992 (Colony 1990–92)
|Reference = <ref>{{cite web|url=http://www.sigmapiuga.com/ |title=Alpha Phi Chapter of Sigma Pi Fraternity |publisher=Sigmapiuga.com |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080510102930/http://sigmapiuga.com/ |archive-date=10 May 2008}}</ref>
}}{{FratChapter
|Chapter Name = Alpha Chi
|Founded = 1949
|School = [[University of Maryland, College Park]]
|Location = [[College Park, Maryland]]
|Status = Inactive
|Notes = Inactive 1993–2007 and since 2010.
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=138&grandChapterID=45 |title=Sigma Pi Chapter Information - Alpha Chi Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080517232749/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=138&grandChapterID=45 |archive-date=17 May 2008}}</ref>
}}{{FratChapter
|Chapter Name = Alpha Psi
|Founded = 1949
|School = [[Utah State University]]
|Location = [[Logan, Utah]]
|Status = Inactive
|Notes = Inactive since 1962
|Reference = 
}}{{FratChapter
|Chapter Name = Alpha Omega
|Founded = 1949
|School = [[San Diego State University]]
|Location = [[San Diego, California]]
|Status = Inactive
|Notes = Inactive 1959-1963, ?–1976, and since 2008.
|Reference = <ref name = Emerald1975/>
}}{{FratChapter
|Chapter Name = Beta Gamma
|Founded = 1949
|School = [[Eastern Illinois University]]
|Location = [[Charleston, Illinois]]
|Status = Active
|Notes =Founded as Chi Rho local fraternity on September 15, 1947.  Inactive 1959-1963.
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=31&grandChapterID=48 |title=Sigma Pi Chapter Information - Beta Gamma Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080517234748/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=31&grandChapterID=48 |archive-date=17 May 2008}}</ref><ref>{{cite magazine|last=Brauer|first=Donald A.|date=August 1949|volume=36|number=2|magazine=The Emerald of Sigma Pi|title=Beta-Gamma Installation|pages=87–89|url=https://greek.historyit.com/sigma_pi/reader.php?id=188}}</ref>
}}{{FratChapter
|Chapter Name = Beta Delta
|Founded = 1950
|School = [[University of Kansas]]
|Location = [[Lawrence, Kansas]]
|Status = Active
|Notes = Inactive 1962–2012
|Reference = <ref>{{cite web|url=http://www.kusigmapi.com/ |title=Beta Delta Chapter of Sigma Pi Fraternity |publisher=kusigmapi.com |accessdate=13 March 2013 |url-status=dead |archive-url=https://web.archive.org/web/20130515210013/http://www.kusigmapi.com/ |archive-date=15 May 2013}}</ref>
}}{{FratChapter
|Chapter Name = Beta Epsilon
|Founded = 1950
|School = [[Syracuse University]]
|Location = [[Syracuse, New York]]
|Status = Inactive
|Notes = Founded as Club 200 local fraternity in the fall of 1946.  Inactive since 1953
|Reference = <ref>{{cite magazine|last=Robbins|first=Leon R.|date=August 1950|volume=37|number=2|magazine=The Emerald of Sigma Pi|title=Syracuse Colony Installed as Beta-Epsilon Chapter|pages=97–99|url=https://greek.historyit.com/sigma_pi/reader.php?id=192}}</ref>
}}{{FratChapter
|Chapter Name = Beta Zeta
|Founded = 1950
|School = [[University of Miami]]
|Location = [[Miami, Florida]]
|Status = Inactive
|Notes = Inactive since 1953
|Reference = <ref>{{cite magazine|last=Ross|first=Rodney M.|date=August 1950|volume=37|number=2|magazine=The Emerald of Sigma Pi|title=Beta-Zeta Chapter Installed at University of Miami|pages=100–103|url=https://greek.historyit.com/sigma_pi/reader.php?id=192}}</ref>
}}{{FratChapter
|Chapter Name = Beta Eta
|Founded = 1950
|School = [[San Jose State University]]
|Location = [[San Jose, California]]
|Notes = Inactive 1977–1993, Inactive since 2015 due to hazing
|Status = Inactive
|Reference = <ref>{{cite web|url=http://www.sigmapisjsu.com/ |title=Beta Eta Chapter of Sigma Pi Fraternity |publisher=Sigmapisjsu.com |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080411023127/http://www.sigmapisjsu.com/ |archive-date=11 April 2008}}</ref>
}}{{FratChapter
|Chapter Name = Beta Theta
|Founded = 1950
|School = [[Drexel University]]
|Location = [[Philadelphia, Pennsylvania]]
|Notes = Founded as Phi Tau Delta local fraternity on March 15, 1948.  Inactive since 2003.
|Status = Inactive
|Reference = <ref>{{cite magazine|last=Nicholson & Peters|date=February 1951|volume=37|number=4|magazine=The Emerald of Sigma Pi|title=Beta-Theta Chapter Installed At Drexel University|pages=206–209|url=https://greek.historyit.com/sigma_pi/reader.php?id=194}}</ref>
}}{{FratChapter
|Chapter Name = Beta Iota
|Founded = 1951
|School = [[Northern Arizona University]]
|Location = [[Flagstaff, Arizona]]
|Status = Active
|Notes =  Founded as the first Fraternity on campus. Inactive 1991-2017
|Reference = <ref name="sigmapi.org"/>
}}{{FratChapter
|Chapter Name = Beta Kappa
|Founded = 1951
|School = [[Arizona State University]]
|Location = [[Tempe, Arizona]]
|Status = Active
|Notes =  Inactive 1965–1985, 1995–2003, and 2011–2016
|Reference = <ref name="sigmapi">{{cite web|url=http://sigmapi-asu.com/ |title=Beta Kappa Chapter of Sigma Pi Fraternity |publisher=Sigmapi-asu.com |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20130816003731/http://sigmapi-asu.com/ |archive-date=16 August 2013}}</ref>
}}{{FratChapter
|Chapter Name = Beta Lambda
|Founded = 1953
|School = [[Lycoming College]]
|Location = [[Williamsport, Pennsylvania]]
|Status = Inactive
|Notes = Inactive since 1991
|Reference = 
}}{{FratChapter
|Chapter Name = Beta Mu
|Founded = 1953
|School = [[The University of Mississippi]]
|Location = [[Oxford, Mississippi]]
|Status = Active
|Notes = Inactive 1991–2009
}}{{FratChapter
|Chapter Name = Beta Nu
|Founded = 1955
|School = [[Southern Illinois University Carbondale]]
|Location = [[Carbondale, Illinois]]
|Status = Active
|Notes = Founded as Nu Epsilon Alpha in 1941.  Inactive 2007–2010
|Reference = <ref>{{cite magazine|last=Odaniel|first=Robert|date=February 1955|volume=41|number=4|magazine=The Emerald of Sigma Pi|title=Beta Nu Chapter Installed at S.I.U.|pages=183–185|url=https://greek.historyit.com/sigma_pi/reader.php?id=340}}</ref>
}}{{FratChapter
|Chapter Name = Beta Xi
|Founded = 1955
|School = [[New Mexico State University]]
|Location = [[Las Cruces, New Mexico]]
|Status = Inactive
|Notes = Founded as Alpha Delta Theta local fraternity in January 1922.  Inactive 1966 to 1967 and since 1986.
|Reference = <ref>{{cite magazine|last=Hill|first=R. Dean|date=May 1955|volume=42|number=1|magazine=The Emerald of Sigma Pi|title=First In new Mexico: Beta-Xi Installed At New Mexico College of A&MA|pages=3–6|url=https://greek.historyit.com/sigma_pi/reader.php?id=341}}</ref>
}}{{FratChapter
|Chapter Name = Beta Omicron
|Founded = 1955
|School = [[California State University-Long Beach]]
|Location = [[Long Beach, California]]
|Status = Active
|Notes = Founded as Tau Upsilon Rho local fraternity on September 10, 1949.
|Reference = <ref>{{cite magazine|last=Burke|first=Albert J.|date=May 1955|volume=42|number=1|magazine=The Emerald of Sigma Pi|title=Seventh California Chapter: Beta-Omicron Installed At Long Beach State College|pages=7–9|url=https://greek.historyit.com/sigma_pi/reader.php?id=341}}</ref>
}}{{FratChapter
|Chapter Name = Beta Pi
|Founded = 1959
|School = [[University of Virginia]]
|Location = [[Charlottesville, Virginia]]
|Status = Active
|Notes = Founded as the Corinthian Club in 1958.  Only chapter ever to win back-to-back-to-back Grand Sage Awards (2004, 2006, 2008)<ref>{{cite web|url=http://hoosonline.virginia.edu/site/apps/nlnet/content2.aspx?c=lkIWLdMQJpE&b=3226831&content_id={AF9E25BD-A791-45B6-97CC-1E31F812B783}&notoc=1 |title=Beta-Pi wins Third Consecutive Grand Sage Award! |publisher=U.Va. Alumni Association |accessdate=13 May 2009 |url-status=dead |archive-url=https://web.archive.org/web/20120218060531/http://hoosonline.virginia.edu/site/apps/nlnet/content2.aspx?c=lkIWLdMQJpE&b=3226831&content_id={AF9E25BD-A791-45B6-97CC-1E31F812B783}&notoc=1 |archive-date=18 February 2012}}</ref>
|Reference = <ref>{{cite web |url=http://www.uvasigmapi.com/ |title=Beta Pi Chapter of Sigma Pi Fraternity |publisher=Uvasigmapi.com |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080630044658/http://www.uvasigmapi.com/ |archive-date=30 June 2008}}</ref>
}}{{FratChapter
|Chapter Name = Beta Rho
|Founded = 1959
|School = [[Atlantic Christian College]]
|Location = [[Wilson, North Carolina]]
|Status = Inactive
|Notes = Founded as Phi Delta Gamma local fraternity in 1937.  Inactive since 1982.
|Reference = <ref>{{cite magazine|last=Manning|first=James R.|date=Summer 1959|volume=46|number=2|magazine=The Emerald of Sigma Pi|title=At Atlantic Christian College Phi Delta Gamma Local Becomes Beta-Rho of Sigma Pi|pages=71–72|url=https://greek.historyit.com/sigma_pi/reader.php?id=68}}</ref>
}}{{FratChapter
|Chapter Name = Beta Sigma
|Founded = 1959
|School = [[Northern Illinois University]]
|Location = [[DeKalb, Illinois]]
|Status = Inactive
|Notes = Founded as Alpha Psi Epsilon local fraternity on June 7, 1954.  Inactive since 2012.
|Reference = <ref>{{cite magazine|last=Rassogianis|first=John|date=Summer 1959|volume=46|number=2|magazine=The Emerald of Sigma Pi|title=Beta Sigma Chapter Installed at Northern Illinois University|pages=73–75|url=https://greek.historyit.com/sigma_pi/reader.php?id=68}}</ref>
}}{{FratChapter
|Chapter Name = Beta Tau
|Founded = 1960
|School = [[Valparaiso University]]
|Location = [[Valparaiso, Indiana]]
|Status = Active
|Notes = Founded as Omega Chi Beta local fraternity on December 10, 1946.
|Reference = <ref>{{cite magazine|last=Hughes|first=Ronald F.|date=Spring 1960|volume=47|number=1|magazine=The Emerald of Sigma Pi|title=Beta-Tau Installed at Valparaiso University|pages=4–7|url=https://greek.historyit.com/sigma_pi/reader.php?id=71}}</ref>
}}{{FratChapter
|Chapter Name = Beta Upsilon
|Founded = 1960
|School = [[Shippensburg University]]
|Location = [[Shippensburg, Pennsylvania]]
|Status = Inactive
|Notes = Inactive since 2002
|Reference = 
}}{{FratChapter
|Chapter Name = Beta Phi
|Founded = 1960
|School = [[Rochester Institute of Technology]]
|Location = [[Henrietta, New York]]
|Status = Inactive
|Notes = Founded as Gamma Phi local fraternity in October 1950.  Inactive since 2002.
|Reference = <ref>{{cite magazine|last=McHenry|first=John A.|date=Summer 1960|volume=47|number=2|magazine=The Emerald of Sigma Pi|title=Rochester Institute Local Granted Beta-Phi Chapter|pages=76–78|url=https://greek.historyit.com/sigma_pi/reader.php?id=72}}</ref>
}}{{FratChapter
|Chapter Name = Beta Chi
|Founded = 1961
|School = [[Loyola University Chicago]]
|Location = [[Chicago]], [[Illinois]]
|Status = Inactive
|Notes = Founded as the Beta chapter of Phi Mu Chi fraternity in 1922.  It was the only chapter to survive and became a local fraternity.  Inactive since 2014.
|Reference = <ref>{{cite magazine|date=Winter 1961|volume=47|number=4|magazine=The Emerald of Sigma Pi|title=Beta-Chi Chapter Installed|pages=175–177|url=https://greek.historyit.com/sigma_pi/reader.php?id=74}}</ref>
}}{{FratChapter
|Chapter Name = Beta Psi
|Founded = 1961
|School = [[East Stroudsburg University]]
|Location = [[East Stroudsburg, Pennsylvania]]
|Status = Active
|Notes = Inactive from 2006 to 2011.
|Reference = <ref>{{cite magazine|last=Morris|first=E. Andrew|date=Spring 2012|volume=96|number=2|magazine=The Emerald of Sigma Pi|title=Rechartering of Beta-Psi Chapter and 50th Anniversary at East Stroudsburg |page=6 |url=https://greek.historyit.com/sigma_pi/reader.php?id=169}}</ref>
}}{{FratChapter
|Chapter Name = Beta Omega
|Founded = 1961
|School = [[Lock Haven University]]
|Location = [[Lock Haven, Pennsylvania]]
|Status = Inactive
|Notes = Founded as Delta Rho Beta local fraternity in 1929.  Inactive from 1988 to 1996 and since 2005.
|Reference = <ref name = "EmeraldW1997">{{cite web |url=http://www.enivation.com/SigmaPi/archive/Emerald/1997/SP_Emerald_VOL_83_NO_1_WINTER_1997.pdf |title=The Emerald of Sigma Pi Winter 1997 |website=www.enivation.com |access-date=17 January 2022 |archive-url=https://web.archive.org/web/20160917214850/http://www.enivation.com/SigmaPi/archive/Emerald/1997/SP_Emerald_VOL_83_NO_1_WINTER_1997.pdf |archive-date=17 September 2016 |url-status=usurped}}</ref>{{rp|14}}
}}{{FratChapter
|Chapter Name = Gamma Alpha
|Founded = 1962
|School = [[University of Detroit-Mercy]]
|Location = [[Detroit]], [[Michigan]]
|Status = Active
|Reference = <ref>{{cite web|url=http://www.sigmapiga.com/ |title=Gamma Alpha Chapter of Sigma Pi Fraternity |publisher=Sigmapiga.com |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20071102182048/http://www.sigmapiga.com/ |archive-date=2 November 2007}}</ref>
}}{{FratChapter
|Chapter Name = Gamma Beta
|Founded = 1962
|School = [[Eastern Michigan University]]
|Location = [[Ypsilanti, Michigan]]
|Notes = Inactive 1972–2006.
|Status = Inactive
|Reference = <ref>{{cite web|url=http://www.emusigmapi.org/ |title=Gamma Beta Colony of Sigma Pi Fraternity |publisher=Emusigmapi.org |accessdate=17 December 2008|url-status=dead |archive-url=https://web.archive.org/web/20080130135151/http://www.emusigmapi.org/ |archive-date=30 January 2008}}</ref>
}}{{FratChapter
|Chapter Name = Gamma Gamma
|Founded = 1962
|School = [[University of Central Missouri]]
|Location = [[Warrensburg, Missouri]]
|Status = Active
|Reference = <ref>{{cite web|url=http://www.ucmsigmapi.com/ |title=Gamma Gamma Chapter of Sigma Pi Fraternity |publisher=Ucmsigmapi.com |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20081015113346/http://ucmsigmapi.com/ |archive-date=15 October 2008}}</ref>
}}{{FratChapter
|Chapter Name = Gamma Delta
|Founded = 1962
|School = [[Slippery Rock University]]
|Location = [[Slippery Rock, Pennsylvania]]
|Status = Inactive
|Notes = Inactive since 1996
|Reference = 
}}{{FratChapter
|Chapter Name = Gamma Epsilon
|Founded = 1963
|School = [[Fairmont State University]]
|Location = [[Fairmont, West Virginia]]
|Status = Inactive
|Notes = Inactive since 2001
|Reference = 
}}{{FratChapter
|Chapter Name = Gamma Zeta
|Founded = 1964
|School = [[Parsons College]]
|Location = [[Fairfield, Iowa]]
|Status = Inactive
|Notes = Inactive when the college closed in 1973.
|Reference = <ref name = EmeraldW1997/>{{rp|8}}
}}{{FratChapter
|Chapter Name = Gamma Eta
|Founded = 1964
|School = [[Rutgers University]]
|Location = [[New Brunswick, New Jersey]]
|Status = Active
|Notes = Rechartered in 2011
|Reference = <ref>{{cite web|url=http://www.sigmapi2.org/index.php?option=com_content&view=article&id=251:sigma-pi-returns-to-rutgers&catid=27:international-news&Itemid=11 |title=Gamma Eta Re-colonization |publisher=Sigmapi2.org |date=11 October 2011 |accessdate=6 November 2011 |url-status=dead |archive-url=https://web.archive.org/web/20111024190818/http://www.sigmapi2.org/index.php?option=com_content&view=article&id=251:sigma-pi-returns-to-rutgers&catid=27:international-news&Itemid=11 |archive-date=24 October 2011}}</ref>
}}{{FratChapter
|Chapter Name = Delta Omicron
|Founded = 1964
|School = [[University of Wisconsin-Milwaukee]]
|Location = [[Milwaukee, Wisconsin]]
|Status = Inactive
|Notes = Founded as Omicron Omicron Omicron local fraternity. Became the Omicron chapter of [[Delta Kappa]] in 1953. First Delta Kappa chapter to be initiated into Sigma Pi.  Inactive since 1972.
|Reference = <ref name="enivation.com">{{cite web |url=http://www.enivation.com/SigmaPi/archive/Emerald/1965/SP_EMERALD_VOL_51_NO_4_WINTER_1965.pdf |title=The Emerald of Sigma Pi Winter 1965 |website=www.enivation.com |access-date=17 January 2022 |archive-url=https://web.archive.org/web/20150416215521/http://www.enivation.com/SigmaPi/archive/Emerald/1965/SP_EMERALD_VOL_51_NO_4_WINTER_1965.pdf |archive-date=16 April 2015 |url-status=usurped}}</ref>
}}{{FratChapter
|Chapter Name = Delta Sigma
|Founded = 1964
|School = [[University of Wisconsin-Stout]]
|Location = [[Menomonie, Wisconsin]]
|Status = Inactive
|Notes = Formed as Sigma local fraternity in 1946.  Became the Sigma chapter of [[Delta Kappa]] fraternity in 1951.  Became a Sigma Pi chapter with the merger.  Inactive since 1983.
|Reference = <ref name="enivation.com" />
}}{{FratChapter
|Chapter Name = Gamma Theta
|Founded = 1965
|School = [[University of Texas]]
|Location = [[Austin, Texas]]
|Status = Inactive
|Notes = Inactive 1972–1999 and since 2019.
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=103&grandChapterID=79 |title=Sigma Pi Chapter Information - Gamma Theta Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080517232204/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=103&grandChapterID=79 |archive-date=17 May 2008}}</ref>
}}{{FratChapter
|Chapter Name = Delta Chi
|Founded = 1965
|School = [[Western State College of Colorado]]
|Location = [[Gunnison, Colorado]]
|Status = Inactive
|Notes = Formed as a colony of [[Delta Kappa]] and chartered in 1963 as its Chi Sigma chapter.  Became a Sigma Pi chapter with the merger.  Inactive in 1972-1994, and since 1999.
|Reference = <ref>{{cite web |url=http://www.enivation.com/SigmaPi/archive/Emerald/1995/SP_EMERALD_VOL_80_NO_4_WINTER_1995.pdf |title=The Emerald of Sigma Pi Winter 1995 |website=www.enivation.com |access-date=17 January 2022 |archive-url=https://web.archive.org/web/20150924000916/http://www.enivation.com/SigmaPi/archive/Emerald/1995/SP_EMERALD_VOL_80_NO_4_WINTER_1995.pdf |archive-date=24 September 2015 |url-status=usurped}}</ref>
}}{{FratChapter
|Chapter Name = Gamma Iota
|Founded = 1965
|School = [[Worcester Polytechnic Institute]]
|Location = [[Worcester, Massachusetts]]
|Status = Active
|Notes = Founded as Psi Theta Nu local fraternity in 1961.
|Reference = <ref>{{cite web|url=http://users.wpi.edu/~sigmapi/ |title=Gamma Iota Chapter of Sigma Pi Fraternity |publisher=Users.wpi.edu |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20070609003322/http://users.wpi.edu/~sigmapi/ |archive-date=9 June 2007}}</ref>
}}{{FratChapter
|Chapter Name = Gamma Kappa
|Founded = 1966
|School = [[Indiana Institute of Technology]]
|Location = [[Fort Wayne, Indiana]]
|Status = Inactive
|Notes = Founded as the Gamma chapter of Theta Mu Pi on February 14, 1947.  In 1957 it became a chapter of [[Beta Sigma Tau]] but had to resign its charter in 1960 because of the college's accreditation status.  Inactive since 2012.
|Reference = <ref>{{cite magazine|date=Spring 1966|volume=53|number=1|magazine=The Emerald of Sigma Pi|title=Gamma-Kappa Receives Charter |pages=254–256 |url=https://greek.historyit.com/sigma_pi/reader.php?id=169}}</ref>
}}{{FratChapter
|Chapter Name = Gamma Lambda
|Founded = 1966
|School = [[University of Wisconsin-Stevens Point]]
|Location = [[Stevens Point, Wisconsin]]
|Status = Inactive
|Notes = Inactive since 1976
|Reference = 
}}{{FratChapter
|Chapter Name = Gamma Mu
|Founded = 1966
|School = [[University of Wisconsin–Oshkosh]]
|Location = [[Oshkosh, Wisconsin]]
|Status = Active
|Notes =  Inactive 1976–1985.
|Reference = <ref>{{cite web|url=http://www.sigmapioshkosh.com/ |title=Gamma Mu Chapter of Sigma Pi Fraternity |publisher=Sigma Pi UW Oshkosh |accessdate=16 January 2023 |url-status=dead |archive-url=https://web.archive.org/web/20141222015717/http://www.sigmapioshkosh.com/#about |archive-date=22 December 2014}}</ref>
}}{{FratChapter
|Chapter Name = Gamma Nu
|Founded = 1966
|School = [[University of Akron]]
|Location = [[Akron, Ohio]]
|Status = Inactive
|Notes = Inactive since 1999
|Reference = 
}}{{FratChapter
|Chapter Name = Gamma Xi
|Founded = 1967
|School = [[West Virginia University Institute of Technology]]
|Location = [[Montgomery, West Virginia]]
|Status = Inactive
|Notes = Founded as Beta Kappa Chi local fraternity in 1926. Inactive since 2019
|Reference = <ref>{{cite magazine|date=Summer 1967|volume=54|number=2|magazine=The Emerald of Sigma Pi|title=86th Chartered in West Virginia |page=50 |url=https://greek.historyit.com/sigma_pi/reader.php?id=220}}</ref>
}}{{FratChapter
|Chapter Name = Gamma Omicron
|Founded = 1967
|School = [[University of Findlay]]
|Location = [[Findlay, Ohio]]
|Status = Inactive
|Notes = Inactive since 1999
|Reference = 
}}{{FratChapter
|Chapter Name = Gamma Pi
|Founded = 1967
|School = [[Indiana State University]]
|Location = [[Terre Haute, Indiana]]
|Status = Inactive
|Notes = Inactive since 2005
|Reference = 
}}{{FratChapter
|Chapter Name = Gamma Rho
|Founded = 1967
|School = [[Western Michigan University]]
|Location = [[Kalamazoo, Michigan]]
|Status = Inactive
|Notes = Inactive since 2013.
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=54&grandChapterID=89 |title=Sigma Pi Chapter Information - Gamma Rho Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20090925003947/http://www.sigmapi.org/chapterServices/chapter_info.cfm?id=54&grandChapterID=89 |archive-date=25 September 2009}}</ref>
}}{{FratChapter
|Chapter Name = Gamma Sigma
|Founded = 1967
|School = [[University of Missouri|University of Missouri–Columbia]]
|Location = [[Columbia, Missouri]]
|Status = Inactive
|Notes = Inactive 1990–1996 and since 2018.
|Reference = <ref>{{cite web|url=http://mizzousigmapi.org/ |title=Gamma Sigma Chapter of Sigma Pi Fraternity |publisher=Mizzousigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20081121174016/http://www.mizzousigmapi.org/ |archive-date=21 November 2008}}</ref>
}}{{FratChapter
|Chapter Name = Gamma Tau
|Founded = 1968
|School = [[Georgia Southern University]]
|Location = [[Statesboro, Georgia]]
|Status = Inactive
|Notes = Founded as Kappa Delta Chi local fraternity in 1967.  Inactive from 1989 to 1997 and since 2008.
|Reference = <ref name = EmeraldW1997/>{{rp|12}}<ref name = Wisconsin>{{cite magazine|date=Summer 1968|volume=55|number=2|magazine=The Emerald of Sigma Pi|title=The Emerald of Sigma Pi Summer 1968|url=https://greek.historyit.com/sigma_pi/reader.php?id=224}}</ref>{{rp|50–52}}
}}{{FratChapter
|Chapter Name = Gamma Upsilon
|Founded = 1968
|School = [[Murray State University]]
|Location = [[Murray, Kentucky]]
|Status = Active
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=44&grandChapterID=92 |title=Sigma Pi Chapter Information - Gamma Upsilon Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20090925110724/http://www.sigmapi.org/chapterServices/chapter_info.cfm?id=44&grandChapterID=92 |archive-date=25 September 2009}}</ref>
}}{{FratChapter
|Chapter Name = Delta Gamma
|Founded = 1968
|School = [[Milton College]]
|Location = [[Milton, Wisconsin]]
|Status = Inactive
|Notes = Formed as a local fraternity then became Gamma chapter of Chi Delta Rho state fraternity before World War II. Became the Chi Gamma chapter of [[Delta Kappa]] in 1953.  At the time of Sigma Pi chartering, it had the longest colony status (four years) in fraternity history. The delay was due to the college's accreditation status.  Inactive when the college closed in 1974.
|Reference = <ref name = Wisconsin/>{{rp|62–65}}
}}{{FratChapter
|Chapter Name = Gamma Phi
|Founded = 1968
|School = [[University of Wisconsin-Whitewater]]
|Location = [[Whitewater, Wisconsin]]
|Status = Inactive
|Notes = Founded as the Lancer Brotherhood local fraternity in 1965.  Inactive since 1977.
|Reference = <ref name = Wisconsin/>{{rp|62–65}}
}}{{FratChapter
|Chapter Name = Gamma Chi
|Founded = 1968
|School = [[Quinnipiac University]]
|Location = [[Hamden, Connecticut]]
|Status = Inactive
|Notes = Founded as Kappa Alpha Psi local fraternity in May 1966.  Inactive since 1972.
|Reference = <ref name = Wisconsin/>{{rp|59–61}}
}}{{FratChapter
|Chapter Name = Gamma Psi
|Founded = 1969
|School = [[St. Louis University]]
|Location = [[St. Louis, Missouri]]
|Status = Inactive
|Notes = Founded as a chapter of Kappa Mu Sigma in 1956.  In 1968 Alpha Phi Chi local fraternity, which was founded in 1966, merged with what had become the Sigma Pi colony.
|Reference = <ref name = "EmeraldSp1969">{{cite web |url=http://www.enivation.com/SigmaPi/archive/Emerald/1969/SP_EMERALD_VOL_56_NO_1_SPRING_1969.pdf |title=The Emerald of Sigma Pi Spring 1969 |website=www.enivation.com |access-date=17 January 2022 |archive-url=https://web.archive.org/web/20160820211838/http://www.enivation.com/SigmaPi/archive/Emerald/1969/SP_EMERALD_VOL_56_NO_1_SPRING_1969.pdf |archive-date=20 August 2016 |url-status=usurped}}</ref>{{rp|2}}
}}{{FratChapter
|Chapter Name = Gamma Omega
|Founded = 1969
|School = [[Wayne State University]]
|Location = [[Detroit]], [[Michigan]]
|Status = Active
|Notes = Founded as Rho Gamma Epsilon Local Fraternity, which became a colony of Sigma Pi after being inspired by the Sigma Pi chapter at the University Detroit Mercy.
|Reference = <ref>{{cite web|url=https://gosigmapi.webs.com/ |title=Sigma Pi Gamma Omega Chapter |publisher=gosigmapi.webs.com |accessdate=4 December 2012 |url-status=live |archive-url=https://web.archive.org/web/20210306062349/https://gosigmapi.webs.com/ |archive-date=6 March 2021}}</ref>
}}{{FratChapter
|Chapter Name = Delta Alpha
|Founded = 1969
|School = [[Central Michigan University]]
|Location = [[Mount Pleasant, Michigan]]
|Status = Active
|Notes = Inactive 2008–2012.
|Reference = <ref name="ReferenceA">{{cite web |url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=56&grandChapterID=98 |title=Delta Alpha Chapter of Sigma Pi Fraternity |website=Sigmapi.org |access-date=17 January 2023 |url-status=dead |archive-url=https://web.archive.org/web/20080110165114/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=56&grandChapterID=98 |archive-date=10 January 2008}}</ref>
}}{{FratChapter
|Chapter Name = Delta Beta
|Founded = 1969
|School = [[Monmouth University]]
|Location = [[West Long Branch, New Jersey]]
|Status = Active
|Notes = Founded as Alpha Theta Chi local fraternity on April 6, 1959.  Inactive 1975–1991.
|Reference = <ref name = EmeraldSp1969/>{{rp|9}}<ref>{{cite web|url=https://www.sigmapimu.com/ |title=Delta Beta Chapter of Sigma Pi Fraternity |publisher=Deltabeta.sigmapi.com |accessdate=17 December 2008|url-status=live |archive-url=https://web.archive.org/web/20220320142405/https://www.sigmapimu.com/ |archive-date=20 March 2022}}</ref>
}}{{FratChapter
|Chapter Name = Delta Epsilon
|Founded = 1969
|School = [[Seton Hall University]]
|Location = [[South Orange, New Jersey]]
|Status = Inactive
|Notes = Founded from the merger of two local fraternities, Tau Sigma Phi and Kappa Sigma Pi.  Inactive since 2018.
|Reference = <ref name = EmeraldSp1969/>{{rp|13}}<ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=73&grandChapterID=100 |title=Sigma Pi Chapter Information - Delta Epsilon Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080518001918/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=73&grandChapterID=100 |archive-date=18 May 2008}}</ref>
}}{{FratChapter
|Chapter Name = Delta Zeta
|Founded = 1969
|School = [[University of Missouri-St. Louis]]
|Location = [[St. Louis, Missouri]]
|Status = Inactive
|Notes = Founded as the Beta chapter of Sigma Kappa Phi in 1966. Inactive since 2021.
|Reference = <ref>{{cite web|url=http://www.umsl.edu/~sigmapi/ |title=Delta Zeta Chapter of Sigma Pi Fraternity |publisher=Umsl.edu |accessdate=17 December 2008|url-status=live |archive-url=https://web.archive.org/web/20170316190025/http://www.umsl.edu/~sigmapi/ |archive-date=16 March 2017}}</ref><ref>{{cite magazine|date=Summer 1969|volume=56|number=2|magazine=The Emerald of Sigma Pi|title=Delta-Zeta Given 101st Charter |pages=54–56 |url=https://greek.historyit.com/sigma_pi/reader.php?id=228}}</ref>
}}{{FratChapter
|Chapter Name = Delta Eta
|Founded = 1969
|School = [[Youngstown State University]]
|Location = [[Youngstown, Ohio]]
|Status = Inactive
|Notes = Founded as Theta Tau local fraternity on March 18, 1968.
|Reference = <ref>{{cite magazine|date=Winter 1970|volume=56|number=4|magazine=The Emerald of Sigma Pi|title=Delta-Eta Created at Youngstown |pages=150–153 |url=https://greek.historyit.com/sigma_pi/reader.php?id=230}}</ref>
}}{{FratChapter
|Chapter Name = Delta Theta
|Founded = 1970
|School = [[Texas A&M-Corpus Christi]]
|Location = [[Corpus Christi, Texas]]
|Status = Inactive
|Notes = Founded as Phi Upsilon Pi local fraternity in 1965.
|Reference = <ref>{{cite magazine|date=Spring 1970|volume=57|number=1|magazine=The Emerald of Sigma Pi|title=Corpus Christi Colony Becomes Delta-Theta |pages=2–3 |url=https://greek.historyit.com/sigma_pi/reader.php?id=231}}</ref>
}}{{FratChapter
|Chapter Name = Delta Iota
|Founded = 1970
|School = [[University of Wisconsin–Platteville]]
|Location = [[Platteville, Wisconsin]]
|Status = Active
|Notes = Founded as Delta Chi Epsilon local fraternity in 1965.
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=114&grandChapterID=104 |title=Sigma Pi Chapter Information - Delta Iota Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080517232246/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=114&grandChapterID=104 |archive-date=17 May 2008}}</ref><ref name = "EmeraldSu1970">{{cite web |url=http://www.enivation.com/SigmaPi/archive/Emerald/1970/SP_EMERALD_VOL_57_NO_2_SUMMER_1970.pdf |title=The Emerald of Sigma Pi Summer 1970 |website=www.enivation.com |access-date=17 January 2022 |archive-url=https://web.archive.org/web/20160918191927/http://www.enivation.com/SigmaPi/archive/Emerald/1970/SP_EMERALD_VOL_57_NO_2_SUMMER_1970.pdf |archive-date=18 September 2016 |url-status=usurped}}</ref>{{rp|62}}
}}{{FratChapter
|Chapter Name = Delta Lambda
|Founded = 1970
|School = [[Louisiana Tech University]]
|Location = [[Ruston, Louisiana]]
|Status = Inactive
|Notes = Inactive 1989–2001 and since 2017.
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/chapterServices/chapter_info.cfm?id=48&grandChapterID=105 |title=Sigma Pi Chapter Information - Delta Lambda Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20090925134954/http://www.sigmapi.org/chapterServices/chapter_info.cfm?id=48&grandChapterID=105 |archive-date=25 September 2009}}</ref>
}}{{FratChapter
|Chapter Name = Delta Mu
|Founded = 1970
|School = [[Salem University]]
|Location = [[Salem, West Virginia]]
|Status = Inactive
|Notes = Founded as Chi Sigma Delta local fraternity in 1965.  Merged with Phi Gamma Nu local fraternity in 1968.  Inactive since 1999.
|Reference = <ref name="ReferenceA"/><ref name = EmeraldSu1970/>{{rp|67}}
}}{{FratChapter
|Chapter Name = Delta Pi
|Founded = 1970
|School = [[Bloomsburg University of Pennsylvania]]
|Location = [[Bloomsburg, Pennsylvania]]
|Status = Inactive
|Notes = Founded as Delta Pi local fraternity in 1967.  Inactive since 2002.
|Reference = <ref name = EmeraldSu1970/>{{rp|69}}
}}{{FratChapter
|Chapter Name = Delta Nu
|Founded = 1970
|School = [[Ball State University]]
|Location = [[Muncie, Indiana]]
|Status = Inactive
|Notes = Founded as Tau Phi Delta local fraternity in September 1968 by transfers from Alpha chapter with the intent on starting a chapter.  Inactive from 1977–1984 and since 1996.
|Reference = <ref name = "EmeraldW1971">{{cite web |url=http://www.enivation.com/SigmaPi/archive/Emerald/1971/SP_EMERALD_VOL_57_NO_4_WINTER_1971.pdf |title=The Emerald of Sigma Pi Winter 1971 |website=www.enivation.com |access-date=17 January 2022 |archive-url=https://web.archive.org/web/20160918191248/http://www.enivation.com/SigmaPi/archive/Emerald/1971/SP_EMERALD_VOL_57_NO_4_WINTER_1971.pdf |archive-date=18 September 2016 |url-status=usurped}}</ref>{{rp|158}}
}}{{FratChapter
|Chapter Name = Delta Xi
|Founded = 1970
|School = [[Southern Utah University]]
|Location = [[Cedar City, Utah]]
|Status = Inactive
|Notes = Founded as Gamma Psi Upsilon local fraternity in December 1948.  Inactive since 1999.
|Reference = <ref name = EmeraldW1971/>{{rp|142}}
}}{{FratChapter
|Chapter Name = Delta Rho
|Founded = 1971
|School = [[Morehead State University]]
|Location = [[Morehead, Kentucky]]
|Status = Active
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=45&grandChapterID=110 |title=Sigma Pi Chapter Information - Delta Rho Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20090323122649/http://sigmapi.org/chapterServices/chapter_info.cfm?id=45&grandChapterID=110 |archive-date=23 March 2009}}</ref>
}}{{FratChapter
|Chapter Name = Delta Tau
|Founded = 1971
|School = [[Indiana University-South Bend]]
|Location = [[South Bend, Indiana]]
|Status = Inactive
|Notes = Founded as Phi Delta local fraternity on April 24, 1970.  Inactive since 2009.
|Reference = <ref name = "EmeraldSu1971">{{cite web |url=http://www.enivation.com/SigmaPi/archive/Emerald/1971/SP_EMERALD_VOL_58_NO_2_SUMMER_1971.pdf |title=The Emerald of Sigma Pi Summer 1971 |website=www.enivation.com |access-date=17 January 2022 |archive-url=https://web.archive.org/web/20160918192418/http://www.enivation.com/SigmaPi/archive/Emerald/1971/SP_EMERALD_VOL_58_NO_2_SUMMER_1971.pdf |archive-date=18 September 2016 |url-status=usurped}}</ref>{{rp|9}}
}}{{FratChapter
|Chapter Name = Delta Upsilon
|Founded = 1971
|School = [[Virginia Polytechnic Institute and State University]]
|Location = [[Blacksburg, Virginia]]
|Status = Inactive
|Notes = Founded as Delta Sigma Tau local fraternity on March 26, 1968.  Inactive 1977–1990 and since 2009.
|Reference = <ref name = EmeraldSu1971/>{{rp|10}}<ref>{{cite web |url=http://www.sigpi.net/vb5/forum/sigma-pi-fraternity-public/national-announcements/1954-virginia-tech-charter-revoked |title=Virginia Tech charter revoked - Sigma Pi Fraternity Forums |website=www.sigpi.net |access-date=2 February 2022 |archive-url=https://archive.today/20130703092010/http://www.sigpi.net/vb5/forum/sigma-pi-fraternity-public/national-announcements/1954-virginia-tech-charter-revoked |archive-date=3 July 2013 |url-status=dead}}</ref>
}}{{FratChapter
|Chapter Name = Delta Phi
|Founded = 1971
|School = [[University of Wisconsin-La Crosse]]
|Location = [[La Crosse, Wisconsin]]
|Status = Inactive
|Notes = Founded as Beta Sigma Chi local fraternity in 1934.
|Reference = <ref name = "Emerald1972">{{cite magazine|last=Korger|first=Roger|date=Winter 1972|volume=58|number=4|magazine=The Emerald of Sigma Pi|title=Two New Chapters Created|page=33|url=https://greek.historyit.com/sigma_pi/reader.php?id=238}}</ref>
}}{{FratChapter
|Chapter Name = Delta Psi
|Founded = 1971
|School = [[Troy State University]]
|Location = [[Troy, Alabama]]
|Status = Inactive
|Notes = Founded as Sigma Alpha local fraternity in 1968.  Inactive since 2001.
|Reference = <ref name = Emerald1972/>
}}{{FratChapter
|Chapter Name = Delta Omega
|Founded = 1972
|School = [[Southern Illinois University Edwardsville]]
|Location = [[Edwardsville, Illinois]]
|Status = Inactive
|Notes = Founded as Pi Delta Alpha local fraternity on January 9, 1971. Inactive since 2018.
|Reference = <ref>{{cite magazine|date=Spring 1972|volume=59|number=1|magazine=The Emerald of Sigma Pi|title=Delta-Omega Chapter of Sigma Pi Is Forever |pages=1, 6 |url=https://greek.historyit.com/sigma_pi/reader.php?id=239}}</ref>
}}{{FratChapter
|Chapter Name = Epsilon Alpha
|Founded = 1972
|School = [[Kennesaw State University]]
|Location = [[Kennesaw, Georgia]]
|Status = Inactive
|Notes = Founded as Sigma Delta Phi local fraternity at [[Southern Polytechnic State University]] in 1960. Moved to Kennesaw State at the schools' consolidation in 2015. Inactive since 2020.
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=29&grandChapterID=116 |title=Sigma Pi Chapter Information - Epsilon Alpha Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080517234732/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=29&grandChapterID=116 |archive-date=17 May 2008}}</ref>
}}{{FratChapter
|Chapter Name = Epsilon Beta
|Founded = 1973
|School = [[University of Kentucky]]
|Location = [[Lexington, Kentucky]]
|Status = Active
|Notes = Inactive from 2011 to 2017.
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=46&grandChapterID=117 |title=Sigma Pi Chapter Information - Epsilon Beta Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080110165017/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=46&grandChapterID=117 |archive-date=10 January 2008}}</ref>
}}{{FratChapter
|Chapter Name = Epsilon Gamma
|Founded = 1975
|School = [[Illinois Wesleyan University]]
|Location = [[Bloomington, Illinois]]
|Status = Inactive
|Notes = Founded as Zeta Epsilon local fraternity in 1969.  Inactive since 2012.
|Reference = <ref>{{cite web|url=http://www.iwu.edu/~sigmapi/ |title=Epsilon Gamma Chapter of Sigma Pi Fraternity |publisher=Iwu.edu |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080105035803/http://www.iwu.edu/~sigmapi/ |archive-date=5 January 2008}}</ref>
}}{{FratChapter
|Chapter Name = Epsilon Delta
|Founded = 1976
|School = [[Columbus State University]]
|Location = [[Columbus, Georgia]]
|Status = Inactive
|Notes = Founded as Sigma Pi Upsilon in 1974. Inactive since 1987.
|Reference = <ref>{{cite magazine|date=Summer 1975|volume=62|number=2|magazine=The Emerald of Sigma Pi|title=Epsilon-Delta Chartered at Columbus |page=1 |url=https://greek.historyit.com/sigma_pi/reader.php?id=252}}</ref>
}}{{FratChapter
|Chapter Name = Epsilon Epsilon
|Founded = 1976
|School = [[Emporia State University]]
|Location = [[Emporia, Kansas]]
|Status = Inactive
|Notes = Inactive since 2020.
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=43&grandChapterID=120 |title=Sigma Pi Chapter Information - Epsilon Epsilon Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20090925134532/http://www.sigmapi.org/chapterServices/chapter_info.cfm?id=43&grandChapterID=120 |archive-date=25 September 2009}}</ref>
}}{{FratChapter
|Chapter Name = Epsilon Zeta
|Founded = 1976
|School = [[Western Illinois University]]
|Location = [[Macomb, Illinois]]
|Status = Active
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=37&grandChapterID=121 |title=Sigma Pi Chapter Information - Epsilon Zeta Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20090925150447/http://www.sigmapi.org/chapterServices/chapter_info.cfm?id=37&grandChapterID=121 |archive-date=25 September 2009}}</ref>
}}{{FratChapter
|Chapter Name = Epsilon Eta
|Founded = 1977
|School = [[Illinois State University]]
|Location = [[Normal, Illinois]]
|Status = Active
|Notes = Inactive from 2002 to 2017.
|Reference = 
}}{{FratChapter
|Chapter Name = Epsilon Theta
|Founded = 1977
|School = [[Elon College]]
|Location = [[Elon, North Carolina]]
|Status = Active
|Notes = Inactive from 2014 to 2021.
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=80&grandChapterID=123 |title=Sigma Pi Chapter Information - Epsilon Theta Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080518001948/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=80&grandChapterID=123 |archive-date=18 May 2008}}</ref>
}}{{FratChapter
|Chapter Name = Epsilon Iota
|Founded = 1977
|School = [[California State University, Northridge]]
|Location = [[Los Angeles, California]]
|Status = Inactive
|Notes = Inactive since 1997.
|Reference = 
}}{{FratChapter
|Chapter Name = Epsilon Kappa
|Founded = 1977
|School = [[Southern Arkansas University]]
|Location = [[Magnolia, Arkansas]]
|Status = Active
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=9&grandChapterID=125 |title=Sigma Pi Chapter Information - Epsilon Kappa Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080518003042/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=9&grandChapterID=125 |archive-date=18 May 2008}}</ref>
}}{{FratChapter
|Chapter Name = Epsilon Lambda
|Founded = 1978
|School = [[Eastern Kentucky University]]
|Location = [[Richmond, Kentucky]]
|Status = Active
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=47&grandChapterID=126 |title=Sigma Pi Chapter Information - Epsilon Lambda Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080110165024/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=47&grandChapterID=126 |archive-date=10 January 2008}}</ref>
}}{{FratChapter
|Chapter Name = Epsilon Mu
|Founded = 1978
|School = [[James Madison University]]
|Location = [[Harrisonburg, Virginia]]
|Status = Inactive
|Notes = Inactive since 1999.
|Reference = 
}}{{FratChapter
|Chapter Name = Epsilon Nu
|Founded = 1978
|School = [[California State University, Fullerton]]
|Location = [[Fullerton, California]]
|Status = Active
|Notes = Inactive from 2003 to 2017.
|Reference = <ref name="sigmapi.org">{{cite web | url=https://sigmapi.org/join-sigma-pi/ |title = Join Sigma Pi |access-date=18 January 2023 |url-status=dead |archive-url=https://web.archive.org/web/20150206060114/https://sigmapi.org/join-sigma-pi/ |archive-date=6 February 2015}}</ref>
}}{{FratChapter
|Chapter Name = Epsilon Xi
|Founded = 1979
|School = [[Fairleigh Dickinson University]]
|Location = [[Rutherford, New Jersey]]
|Status = Active
|Notes = Inactive 1994–2005.
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=173&grandChapterID=129 |title=Sigma Pi Chapter Information - Epsilon Xi Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080517232816/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=173&grandChapterID=129 |archive-date=17 May 2008}}</ref>
}}{{FratChapter
|Chapter Name = Epsilon Omicron
|Founded = 1979
|School = [[University at Buffalo, The State University of New York|SUNY Buffalo]]
|Location = [[Buffalo, New York]]
|Status = Inactive
|Notes = Inactive since 2020.
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=79&grandChapterID=130 |title=Sigma Pi Chapter Information - Epsilon Omicron Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080518001940/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=79&grandChapterID=130 |archive-date=18 May 2008}}</ref>
}}{{FratChapter
|Chapter Name = Epsilon Pi
|Founded = 1981
|School = [[Christopher Newport University]]
|Location = [[Newport News, Virginia]]
|Status = Inactive
|Notes = Inactive since 2007.
|Reference = 
}}{{FratChapter
|Chapter Name = Epsilon Rho
|Founded = 1982
|School = [[Drury University]]
|Location = [[Springfield, Missouri]]
|Status = Active
|Reference = <ref>{{cite web|url=http://www.drurysigmapi.com/ |title=Epsilon Rho Chapter of Sigma Pi Fraternity |publisher=Sigmapi.org |accessdate=18 January 2023 |url-status=live |archive-url=https://web.archive.org/web/20110209032522/http://www.drurysigmapi.com/ |archive-date=9 February 2011}}</ref><!-- Live link is a redirect to Facebook, archive shows original site -->
}}{{FratChapter
|Chapter Name = Epsilon Sigma
|Founded = 1982
|School = [[Loyola Marymount University]]
|Location = [[Los Angeles, California]]
|Status = Inactive
|Notes = Inactive since 1998.
|Reference = 
}}{{FratChapter
|Chapter Name = Epsilon Tau
|Founded = 1982
|School = [[University of Tennessee at Martin]]
|Location = [[Martin, Tennessee]]
|Status = Inactive
|Notes = Inactive since 1996.
|Reference = 
}}{{FratChapter
|Chapter Name = Epsilon Upsilon
|Founded = 1982
|School = [[University of California, Davis]]
|Location = [[Davis, California]]
|Status = Inactive
|Notes = Inactive since 1986.
|Reference = 
}}{{FratChapter
|Chapter Name = Epsilon Phi
|Founded = 1982
|School = [[Embry-Riddle Aeronautical University]]-[[Arizona]]
|Location = [[Prescott, Arizona]]
|Status = Inactive
|Notes = Inactive since 2012.
|Reference = <ref>{{cite web|url=http://www.erausigmapi.com/ |title=Epsilon Phi Chapter of Sigma Pi Fraternity |publisher=Sigmapi.org |accessdate=18 January 2023 |url-status=dead |archive-url=https://web.archive.org/web/20080324153715/http://www.erausigmapi.com/ |archive-date=24 March 2008}}</ref>
}}{{FratChapter
|Chapter Name = Epsilon Chi
|Founded = 1983
|School = [[University of San Diego]]
|Location = [[San Diego, California]]
|Status = Active
|Notes = Inactive from 1995-2016.
|Reference = <ref>{{cite web |url=http://sigmapi.org/join-sigma-pi/university-of-san-diego/ |title=Sigma Pi Fraternity » University of San Diego |website=sigmapi.org |access-date=17 January 2022 |archive-url=https://web.archive.org/web/20150323202358/http://sigmapi.org/join-sigma-pi/university-of-san-diego/ |archive-date=23 March 2015 |url-status=dead}}</ref>
}}{{FratChapter
|Chapter Name = Epsilon Psi
|Founded = 1983
|School = [[Widener University]]
|Location = [[Chester, Pennsylvania]]
|Status = Inactive
|Notes = Inactive since 2002.
|Reference = 
}}{{FratChapter
|Chapter Name  = Epsilon Omega
|Founded = 1983
|School = [[State University of New York at Potsdam]]
|Location = [[Potsdam, New York]]
|Status = Inactive
|Notes = Inactive since 2008.
|Reference = 
}}{{FratChapter
|Chapter Name = Zeta Alpha
|Founded = 1984
|School = [[West Chester University]]
|Location = [[West Chester, Pennsylvania]]
|Status = Active
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=99&grandChapterID=140 |title=Sigma Pi Chapter Information - Zeta Alpha Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080518003101/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=99&grandChapterID=140 |archive-date=18 May 2008}}</ref>
}}{{FratChapter
|Chapter Name = Zeta Beta
|Founded = 1984
|School = [[Embry-Riddle Aeronautical University]]-[[Florida]]
|Location = [[Daytona Beach, Florida]]
|Status = Inactive |Notes = Charter revoked in 2009
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/bulletin/dec09.html |title=Zeta Beta Chapter of Sigma Pi Fraternity |publisher=Sigmapi.org |accessdate=17 December 2010 |url-status=dead |archive-url=https://web.archive.org/web/20140219003342/http://www.sigmapi.org/bulletin/dec09.html |archive-date=19 February 2014}}</ref>
}}{{FratChapter
|Chapter Name = Zeta Gamma
|Founded = 1984
|School = [[Millersville University]]
|Location = [[Millersville, Pennsylvania]]
|Status = Inactive
|Notes = Founded as Sigma Epsilon Beta local fraternity in 1966 then merged with Mu Alpha Kappa local fraternity in 1983.  Inactive since 2011.
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=100&grandChapterID=142 |title=Sigma Pi Chapter Information - Zeta Gamma Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080517232153/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=100&grandChapterID=142 |archive-date=17 May 2008}}</ref>
}}{{FratChapter
|Chapter Name = Zeta Delta
|Founded = 1984
|School = [[University of Colorado at Boulder|University of Colorado]]
|Location = [[Boulder, Colorado]]
|Status = Active
|Notes = Inactive from 1986–1998.
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=22&grandChapterID=143 |title=Sigma Pi Chapter Information - Zeta Delta Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080517233006/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=22&grandChapterID=143 |archive-date=17 May 2008}}</ref><ref>{{cite magazine|date=Fall 1998|volume=83|number=3|magazine=The Emerald of Sigma Pi|title=Zeta-Delta Chapter Reinstalled |pages=2–3 |url=https://greek.historyit.com/sigma_pi/reader.php?id=390}}</ref>
}}{{FratChapter
|Chapter Name = Zeta Epsilon
|Founded = 1984
|School = [[Michigan Technological University]]
|Location = [[Houghton, Michigan]]
|Status = Active
|Notes = Northernmost chapter, and snowiest
|Reference = <ref>{{cite web |url=https://sigmapize.com/ |title=Zeta Epsilon Chapter of Sigma Pi Fraternity |website=Sigmapize.com |access-date=19 January 2023 |url-status=live |archive-url=https://web.archive.org/web/20220707074045/https://sigmapize.com/ |archive-date=7 July 2022}}</ref>
}}{{FratChapter
|Chapter Name = Zeta Zeta
|Founded = 1984
|School = [[University of Florida]]
|Location = [[Gainesville, Florida]]
|Status = Inactive
|Notes = Inactive 1998–2005, and since 2012.
|Reference = <ref>{{cite web|url=http://www.ufsigmapi.com/ |title=Zeta Zeta Chapter of Sigma Pi Fraternity |publisher=Ufsigmapi.com |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20081206063702/http://www.ufsigmapi.com/ |archive-date=6 December 2008}}</ref>
}}{{FratChapter
|Chapter Name = Zeta Eta
|Founded = 1985
|School = [[Santa Clara University]]
|Location = [[Santa Clara, California]]
|Notes = 
|Status = Active
|Reference = <ref>{{cite web|url=http://scusigmapi.com/ |title=Zeta Eta Chapter of Sigma Pi Fraternity |publisher=Scusigmapi.com |accessdate=9 October 2017 |url-status=dead |archive-url=https://web.archive.org/web/20180208234031/http://scusigmapi.com/ |archive-date=8 February 2018}}</ref>
}}{{FratChapter
|Chapter Name = Zeta Theta
|Founded = 1985
|School = [[SUNY Plattsburgh]]
|Location = [[Plattsburgh, New York]]
|Status = Inactive
|Notes = Inactive since 2001
|Reference = 
}}{{FratChapter
|Chapter Name = Zeta Iota
|Founded = 1985
|School = [[University of Western Ontario]]
|Location = [[London, Ontario]]
|Status = Inactive
|Notes = Inactive since 1999
|Reference = 
}}{{FratChapter
|Chapter Name = Zeta Kappa
|Founded = 1985
|School = [[California State University, Bakersfield]]
|Location = [[Bakersfield, California]]
|Status = Inactive
|Notes = Inactive since 1998
|Reference = 
}}{{FratChapter
|Chapter Name = Zeta Lambda
|Founded = 1985
|School = [[University of Southern California]]
|Location = [[Los Angeles, California]]
|Status = Inactive
|Notes = Inactive since 2001
|Reference = <ref>{{cite web|url=https://sigmapi.org/chapter-roll/#chapterroll-website/?view_592_page=6 |title=Zeta Lambda Chapter of Sigma Pi Fraternity |publisher=Sigmapi.org |page=15 |accessdate=19 January 2023 |url-status=dead |archive-url=https://web.archive.org/web/20150223140933/https://sigmapi.org/chapter-roll/ |archive-date=23 February 2015}}</ref>
}}{{FratChapter
|Chapter Name = Zeta Mu
|Founded = 1985
|School = [[Michigan State University]]
|Location = [[East Lansing, Michigan]]
|Status = Active
|Notes = Inactive from 1995–1999.
|Reference = <ref>{{cite web|url=http://www.msusigmapi.com/ |title=Zeta Mu Chapter of Sigma Pi Fraternity |publisher=Msusigmapi.com |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20090218113326/http://www.msusigmapi.com/ |archive-date=18 February 2009}}</ref>
}}{{FratChapter
|Chapter Name = Zeta Nu
|Founded = 1985
|School = [[Villanova University]]
|Location = [[Philadelphia, Pennsylvania]]
|Status = Inactive
|Notes = Inactive since 2007
|Reference = 
}}{{FratChapter
|Chapter Name = Zeta Xi
|Founded = 1985
|School = [[Southeastern Oklahoma State University]]
|Location = [[Durant, Oklahoma]]
|Status = Inactive
|Notes = Inactive since 1986
|Reference = 
}}{{FratChapter
|Chapter Name = Zeta Omicron
|Founded = 1986
|School = [[Lawrence Technological University]]
|Location = [[Southfield, Michigan]]
|Status = Inactive
|Notes = Inactive since 2022
|Reference = <ref>{{cite web|url=http://www.ltusigmapi.com/ |title=Zeta Omicron Chapter of Sigma Pi Fraternity |publisher=Ltusigmapi.com |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20081121050005/http://www.ltusigmapi.com/ |archive-date=21 November 2008}}</ref>
}}{{FratChapter
|Chapter Name = Zeta Pi
|Founded = 1986
|School = [[Oakland University]]
|Location = [[Rochester, Michigan]]
|Status = Active
|Notes = Founded as Omega Nu Pi Local Fraternity. Became a [[Lambda Chi Alpha]] Colony, until Lambda Chi Alpha closed expansion. Then became a Sigma Pi Colony.
|Reference = <ref name=Emerald86>{{cite magazine|date=Spring–Summer 1986|volume=74|number=1|magazine=The Emerald of Sigma Pi |title=The Emerald of Sigma Pi Spring-Summer 1986 |url=https://greek.historyit.com/sigma_pi/reader.php?id=378}}</ref>{{rp|7}}
}}{{FratChapter
|Chapter Name = Zeta Rho
|Founded = 1985
|School = [[Edinboro University of Pennsylvania]]
|Location = [[Edinboro, Pennsylvania]]
|Status = Inactive
|Notes = Inactive since 2000.
|Reference = <ref name=Emerald86/>{{rp|7}}
}}{{FratChapter
|Chapter Name = Zeta Sigma
|Founded = 1986
|School = [[North Carolina Wesleyan College]]
|Location = [[Rocky Mount, North Carolina]]
|Notes = Founded as Pi Kappa Omega local fraternity in 1979.  Inactive since 2003
|Status = Inactive
|Reference = <ref name=Emerald86/>{{rp|6}}
}}{{FratChapter
|Chapter Name = Zeta Tau
|Founded = 1987
|School = [[University of Northern Colorado]]
|Location = [[Greeley, Colorado]]
|Status = Inactive
|Notes = Inactive since 2008.
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=23&grandChapterID=158 |title=Sigma Pi Chapter Information - Zeta Tau Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080517233050/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=23&grandChapterID=158 |archive-date=17 May 2008}}</ref>
}}{{FratChapter
|Chapter Name = Zeta Upsilon
|Founded = 1987
|School = [[University of California, San Diego]]
|Location = [[San Diego, California]]
|Status = Inactive
|Notes = Inactive since 1996
|Reference = 
}}{{FratChapter
|Chapter Name = Zeta Phi
|Founded = 1987
|School = [[Southeastern Louisiana University]]
|Location = [[Hammond, Louisiana]]
|Status = Inactive
|Notes = Inactive since 1994
|Reference = 
}}{{FratChapter
|Chapter Name = Zeta Chi
|Founded = 1988
|School = [[Rowan University]]
|Location = [[Glassboro, New Jersey]]
|Status = Active
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=74&grandChapterID=161 |title=Sigma Pi Chapter Information - Zeta Chi Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080518001923/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=74&grandChapterID=161 |archive-date=18 May 2008}}</ref>
}}{{FratChapter
|Chapter Name = Zeta Psi
|Founded = 1988
|School = [[West Virginia University]]
|Location = [[Morgantown, West Virginia]]
|Status = Inactive
|Notes = Inactive since 1991.
|Reference = 
}}{{FratChapter
|Chapter Name = Zeta Omega
|Founded = 1988
|School = [[University of Nevada, Reno]]
|Location = [[Reno, Nevada]]
|Status = Inactive
|Notes = Inactive since 1996.
|Reference = 
}}{{FratChapter
|Chapter Name = Eta Alpha
|Founded = 1988
|School = [[California State University-Sacramento]]
|Location = [[Sacramento, California]]
|Status = Inactive
|Notes = Inactive since 2013.
|Reference = <ref>{{cite web|url=http://www.sigmapicsus.com/ |title=Eta Alpha Chapter of Sigma Pi Fraternity |publisher=Sigmapicsus.com |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20090515215002/http://sigmapicsus.com/ |archive-date=15 May 2009}}</ref>
}}{{FratChapter
|Chapter Name = Eta Beta
|Founded = 1988
|School = [[Southern Connecticut State University]]
|Location = [[New Haven, Connecticut]]
|Status = Inactive
|Notes = Founded as Beta Mu Sigma in 1961. Inactive since 1999.
|Reference = 
}}{{FratChapter
|Chapter Name = Eta Gamma
|Founded = 1988
|School = [[Hofstra University]]
|Location = [[Long Island, New York]]
|Status = Inactive
|Notes = Inactive since 2016.
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=83&grandChapterID=166 |title=Sigma Pi Chapter Information - Eta Gamma Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080518003009/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=83&grandChapterID=166 |archive-date=18 May 2008}}</ref>
}}{{FratChapter
|Chapter Name = Eta Delta
|Founded = 1988
|School = [[California Polytechnic State University]]
|Location = [[San Luis Obispo, California]]
|Status = Active
|Notes = Inactive 1999–2008.
|Reference = <ref>{{cite web|url=https://www.cpsigmapi.com/ |title=Eta Delta Chapter of Sigma Pi Fraternity |publisher=Cpsigmapi.com |accessdate=17 December 2008 |url-status=live |archive-url=https://web.archive.org/web/20210608234414/http://www.cpsigmapi.com/ |archive-date=8 June 2021}}</ref>
}}{{FratChapter
|Chapter Name = Eta Epsilon
|Founded = 1988
|School = [[Florida State University]]
|Location = [[Tallahassee, Florida]]
|Status = Inactive
|Notes = Inactive 2001–2008, and since 2022.
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=222&grandChapterID=168 |title=Sigma Pi Chapter Information - Eta Epsilon Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080517233017/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=222&grandChapterID=168 |archive-date=17 May 2008}}</ref>
}}{{FratChapter
|Chapter Name = Eta Zeta
|Founded = 1989
|School = [[Western Connecticut State University]]
|Location = [[Danbury, Connecticut]]
|Status = Inactive
|Notes = Founded as Chi Epsilon Sigma in 1966. Inactive since 1995.
|Reference = 
}}{{FratChapter
|Chapter Name = Eta Eta
|Founded = 1989
|School = [[Bridgewater State University]]
|Location = [[Bridgewater, Massachusetts]]
|Status = Active
|Notes = Founded as Delta Pi local fraternity in 1987.
|Reference = <ref>{{cite web|url=http://www.sigmapihh.org/ |title=Eta Eta Chapter of Sigma Pi Fraternity |publisher=Sigmapihh.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20081026133734/http://sigmapihh.org/ |archive-date=26 October 2008}}</ref>
}}{{FratChapter
|Chapter Name = Eta Theta
|Founded = 1989
|School = [[York College of Pennsylvania]]
|Location = [[York, Pennsylvania]]
|Status = Inactive
|Notes = Founded as Zeta Phi Omicron local fraternity in 1984.  Inactive since 2009.
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/chapterServices/chapter_info.cfm?id=194&grandChapterID=171 |title=Sigma Pi Chapter Information - Eta Theta Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080517232842/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=194&grandChapterID=171 |archive-date=17 May 2008}}</ref>
}}{{FratChapter
|Chapter Name = Eta Iota
|Founded = 1989
|School = [[California State University-Dominguez Hills]]
|Location = [[Carson, California]]
|Status = Active
|Reference = <ref>{{cite web|url=http://www.dhsigmapi.com/ |title=Eta Iota Chapter of Sigma Pi Fraternity |publisher=Dhsigmapi.com |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20130523182531/http://www.dhsigmapi.com/ |archive-date=23 May 2013}}</ref>
}}{{FratChapter
|Chapter Name = Eta Kappa
|Founded = 1990
|School = [[East Carolina University]]
|Location = [[Greenville, North Carolina]]
|Status = Active
|Notes = Formed as a local fraternity in 1987.  Inactive from 2009 to 2017.
|Reference = <ref name="sigmapi.org"/>
}}{{FratChapter
|Chapter Name = Eta Lambda
|Founded = 1990
|School = [[University at Albany, SUNY]]
|Location = [[Albany, New York]]
|Status = Inactive
|Notes = Inactive since 1999.
|Reference = 
}}{{FratChapter
|Chapter Name = Eta Mu
|Founded = 1990
|School = [[Missouri Southern State University]]
|Location = [[Joplin, Missouri]]
|Status = Inactive
|Notes = Inactive since 2018.
|Reference = <ref>{{cite web|url=http://www.etamu.us/ |title=Eta Mu Chapter of Sigma Pi Fraternity |publisher=Etamu.us |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080225142253/http://www.etamu.us/ |archive-date=25 February 2008}}</ref>
}}{{FratChapter
|Chapter Name = Eta Nu
|Founded = 1990
|School = [[Towson University]]
|Location = [[Towson, Maryland]]
|Status = Active
|Notes = Inactive from 2013 to 2018. Re-chartered in 2020.
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/chapterServices/chapter_info.cfm?id=49&grandChapterID=176 |title=Sigma Pi Chapter Information - Eta Nu Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080110165034/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=49&grandChapterID=176 |archive-date=10 January 2008}}</ref>
}}{{FratChapter
|Chapter Name = Eta Omicron
|Founded = 1991
|School = [[University of Toronto]]
|Location = [[Toronto|Toronto, Ontario]]
|Status = Inactive
|Notes = Inactive since 2015.
|Reference = <ref>{{cite web|url=http://www.iamsigmapi.ca/ |title=Eta Omicron Chapter of Sigma Pi Fraternity |publisher=Iamsigmapi.ca |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20091006015826/http://www.iamsigmapi.ca/ |archive-date=6 October 2009}}</ref>
}}{{FratChapter
|Chapter Name = Eta Pi
|Founded = 1991
|School = [[Kutztown University of Pennsylvania]]
|Location = [[Kutztown, Pennsylvania]]
|Status = Inactive
|Notes = Inactive since 2014
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/chapterServices/chapter_info.cfm?id=195&grandChapterID=179 |title=Sigma Pi Chapter Information - Eta Pi Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080517232847/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=195&grandChapterID=179 |archive-date=17 May 2008}}</ref>
}}{{FratChapter
|Chapter Name = Eta Rho
|Founded = 1992
|School = [[Carleton University]]
|Location = [[Ottawa|Ottawa, Ontario]]
|Status = Inactive
|Notes = Inactive since 2022.
|Reference = <ref>{{cite web |url=http://sigmapicanada.com/ |title=Eta Rho Chapter of Sigma Pi Fraternity |website=Sigmapicanada.com |access-date=20 January 2023 |url-status=dead |archive-url=https://web.archive.org/web/20130618111253/http://sigmapicanada.com/ |archive-date=18 June 2013}}</ref>
}}{{FratChapter
|Chapter Name = Eta Sigma
|Founded = 1993
|School = [[Colorado State University]]
|Location = [[Fort Collins, Colorado]]
|Status = Active
|Notes = Inactive 2004–2014.
|Reference = <ref name="sigmapi.org"/>
}}{{FratChapter
|Chapter Name = Eta Tau
|Founded = 1994
|School = [[Fitchburg State College]]
|Location = [[Fitchburg, Massachusetts]]
|Status = Active
|Reference = <ref>{{cite web|url=http://www.etatau.com/ |title=Eta Tau Chapter of Sigma Pi Fraternity |publisher=Etatau.com |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20170421232548/http://www.etatau.com/ |archive-date=21 April 2017}}</ref>
}}{{FratChapter
|Chapter Name = Eta Upsilon
|Founded = 1995
|School = [[University of California, Irvine]]
|Location = [[Irvine, California]]
|Status = Active
|Reference = <ref>{{cite web |url=http://www.ucisigmapi.org/ |title=Eta Upsilon Chapter of Sigma Pi Fraternity |publisher=Ucisigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20090126052455/http://www.ucisigmapi.org/ |archive-date=26 January 2009}}</ref>
}}{{FratChapter
|Chapter Name = Eta Phi
|Founded = 1995
|School = [[Miami University]]
|Location = [[Oxford, Ohio]]
|Status = Active
|Reference = <ref>{{cite web|url=http://www.sigmapimu.org/ |title=Eta Phi Chapter of Sigma Pi Fraternity |publisher=Sigmapimu.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080617103049/http://www.sigmapimu.org/ |archive-date=17 June 2008}}</ref>
}}{{FratChapter
|Chapter Name = Eta Chi
|Founded = 1995
|School = [[DePaul University]]
|Location = [[Chicago, Illinois]]
|Status = Inactive
|Notes = Founded as Tau Delta Rho in 1919. Inactive since 1996.
|Reference = 
}}{{FratChapter
|Chapter Name = Eta Psi
|Founded = 1996
|School = [[Clemson University]]
|Location = [[Clemson, South Carolina]]
|Status = Inactive
|Notes = Inactive since 2016.
|Reference = <ref>{{cite magazine|date=Spring 1996|volume=82|number=2|magazine=The Emerald of Sigma Pi|title=Sigma Pi's First Chapter in the State of South Carolina |page=20 |url=https://greek.historyit.com/sigma_pi/reader.php?id=385}}</ref>
}}{{FratChapter
|Chapter Name = Eta Omega
|Founded = 1996
|School = [[Johnson & Wales University]]
|Location = [[Providence, Rhode Island]]
|Status = Inactive
|Notes = Inactive since 2014.
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/chapterServices/chapter_info.cfm?id=196&grandChapterID=187 |title=Sigma Pi Chapter Information - Eta Omega Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080517232852/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=196&grandChapterID=187 |archive-date=17 May 2008}}</ref>
}}{{FratChapter
|Chapter Name = Theta Alpha
|Founded = 1997
|School = [[Clarion University]]
|Location = [[Clarion, Pennsylvania]]
|Status = Inactive
|Notes = Inactive since 2005.
|Reference = 
}}{{FratChapter
|Chapter Name = Theta Beta
|Founded = 1997
|School = [[Saginaw Valley State University]]
|Location = [[University Center, Michigan]]
|Status = Active
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/chapterServices/chapter_info.cfm?id=61&grandChapterID=189 |title=Sigma Pi Chapter Information - Theta Beta Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080517235026/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=61&grandChapterID=189 |archive-date=17 May 2008}}</ref>
}}{{FratChapter
|Chapter Name = Theta Gamma
|Founded = 1998
|School = [[University of West Alabama]]
|Location = [[Livingston, Alabama]]
|Status = Active
|Reference = <ref>{{cite web|url=http://www.sigmapi.net/ |title=Theta Gamma Chapter of Sigma Pi Fraternity |publisher=Sigmapi.net |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20140104195349/http://www.sigmapi.net/ |archive-date=4 January 2014}}</ref>
}}{{FratChapter
|Chapter Name = Theta Delta
|Founded = 2000
|School = [[The College of New Jersey]]
|Location = [[Ewing, New Jersey]]
|Status = Active
|Reference = <ref>{{cite web|url=http://www.sigmapitcnj.com/ |title=Theta Delta Chapter of Sigma Pi Fraternity |publisher=Sigmapitcnj.com |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20090503054828/http://www.sigmapitcnj.com/ |archive-date=3 May 2009}}</ref>
}}{{FratChapter
|Chapter Name = Theta Epsilon
|Founded = 2001
|School = [[Indiana University of Pennsylvania]]
|Location = [[Indiana, Pennsylvania]]
|Status = Active
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/chapterServices/chapter_info.cfm?id=198&grandChapterID=192 |title=Sigma Pi Chapter Information - Theta Epsilon Chapter |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080517232857/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=198&grandChapterID=192 |archive-date=17 May 2008}}</ref>
}}{{FratChapter
|Chapter Name = Theta Zeta
|Founded = 2001
|School = [[Lynchburg College]]
|Location = [[Lynchburg, Virginia]]
|Status = Inactive
|Notes = Founded as Delta Lambda Chi in 2000. Inactive since 2006.
|Reference = 
}}{{FratChapter
|Chapter Name = Theta Eta
|Founded = 2003
|School = [[Old Dominion University]]
|Location = [[Norfolk, Virginia]]
|Status = Active
|Reference = <ref>{{cite web|url=http://odusigmapi.com/ |title=Theta Eta Chapter of Sigma Pi Fraternity |publisher=Odusigmapi.com |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20081218032056/http://odusigmapi.com/ |archive-date=18 December 2008}}</ref>
}}{{FratChapter
|Chapter Name = Theta Theta
|Founded = 2003
|School = [[Ferris State University]]
|Location = [[Big Rapids, Michigan]]
|Status = Active
|Reference = <ref>{{cite web|url=http://www.sigmapithetatheta.org/ |title=Theta Theta Chapter of Sigma Pi Fraternity |publisher=Sigmapithetatheta.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20130615183100/http://www.sigmapithetatheta.org/ |archive-date=15 June 2013}}</ref>
}}{{FratChapter
|Chapter Name = Theta Iota
|Founded = 2003
|School = [[Penn State Altoona]]
|Location = [[Altoona, Pennsylvania]]
|Status = Active
|Reference = <ref>{{cite web|url=http://www.freewebs.com/rushsigmapi/ |title=Theta Iota Chapter of Sigma Pi Fraternity |publisher=Freewebs.com |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20090417015631/http://www.freewebs.com/rushsigmapi/ |archive-date=17 April 2009}}</ref>
}}{{FratChapter
|Chapter Name = Theta Kappa
|Founded = 2003
|School = [[Texas Tech University]]
|Location = [[Lubbock, Texas]]
|Status = Inactive
|Notes = Inactive since 2010.
|Reference = <ref>{{cite web|url=http://www.ttusigmapi.com/ |title=Theta Kappa Chapter of Sigma Pi Fraternity |publisher=Ttusigmapi.com |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080828060106/http://ttusigmapi.com/ |archive-date=28 August 2008}}</ref>
}}{{FratChapter
|Chapter Name = Theta Lambda
|Founded = 2003
|School = [[Radford University]]
|Location = [[Radford, Virginia]]
|Status = Active
|Reference = <ref>{{cite web|url=http://php.radford.edu/~sigmapi/ |title=Theta Lambda Chapter of Sigma Pi Fraternity |publisher=Php.radford.edu |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20111005005157/http://php.radford.edu/~sigmapi/ |archive-date=5 October 2011}}</ref>
}}{{FratChapter
|Chapter Name = Theta Mu
|Founded = 2003
|School = [[California State University, Chico]]
|Location = [[Chico, California]]
|Status = Active
|Notes = Founded as Phi Nu Chi local fraternity on March 31, 2000.
|Reference = <ref>{{cite web |url=http://www.sigmapicsuc.com/ |archive-url=https://archive.today/20110130080207/http://www.sigmapicsuc.com/ |url-status=dead |archive-date=30 January 2011 |title=Theta Mu Chapter of Sigma Pi Fraternity |publisher=Sigmapicsuc.com |accessdate=17 December 2008}}</ref>
}}{{FratChapter
|Chapter Name = Theta Nu
|Founded = 2003
|School = [[University of Houston]]
|Location = [[Houston, Texas]]
|Status = Active
|Reference = <ref>{{cite web|url=http://www.sigmapiuh.org/ |title=Theta Nu Chapter of Sigma Pi Fraternity |publisher=Sigmapiuh.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20090501061758/http://www.sigmapiuh.org/ |archive-date=1 May 2009}}</ref>
}}{{FratChapter
|Chapter Name = Theta Xi
|Founded = 2004
|School = [[Salisbury University]]
|Location = [[Salisbury, Maryland]]
|Status = Active
|Reference = <ref>{{cite web|url=http://www.theta-xi.net/ |title=Theta Xi Chapter of Sigma Pi Fraternity |publisher=Theta-xi.net |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20120211205859/http://www.theta-xi.net/ |archive-date=11 February 2012}}</ref>
}}{{FratChapter
|Chapter Name = Theta Omicron
|Founded = 2004
|School = [[University of Alabama]]
|Location = [[Tuscaloosa, Alabama]]
|Status = Active
|Reference = <ref>{{cite magazine|last=Ritson|first=Keith|date=Fall 2004|volume=89|number=4|magazine=The Emerald of Sigma Pi|title=Alabama Charters |page=18 |url=https://greek.historyit.com/sigma_pi/reader.php?id=125}}</ref>
}}{{FratChapter
|Chapter Name = Theta Pi
|Founded = 2005
|School = [[University of Arizona]]
|Location = [[Tucson, Arizona]]
|Status = Inactive
|Notes = Inactive since 2009
}}{{FratChapter
|Chapter Name = Theta Rho
|Founded = 2005
|School = [[Grand Valley State University]]
|Location = [[Allendale, Michigan]]
|Status = Active
|Reference = <ref>{{cite web |url=https://www2.gvsu.edu/sigmapi/ |title=Theta Rho Chapter of Sigma Pi Fraternity |website=Gvsu.edu |access-date=21 January 2023 |url-status=live |archive-url=https://web.archive.org/web/20230121195422/https://www2.gvsu.edu/sigmapi/ |archive-date=21 January 2023}}</ref>
}}{{FratChapter
|Chapter Name = Theta Sigma
|Founded = 2005
|School = [[Ursinus College]]
|Location = [[Collegeville, Pennsylvania]]
|Status = Active
|Reference = 
}}{{FratChapter
|Chapter Name = Theta Tau
|Founded = 2005
|School = [[William Paterson University]]
|Location = [[Wayne, New Jersey]]
|Status = Active
|Reference = <ref>{{cite web|url=http://www.thetatau.sigmapi.com/ |title=Theta Tau Chapter of Sigma Pi Fraternity |publisher=Thetatau.sigmapi.com |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20081212030756/http://thetatau.sigmapi.com/ |archive-date=12 December 2008}}</ref>
}}{{FratChapter
|Chapter Name = Theta Upsilon
|Founded = 2006
|School = [[Texas State University]]
|Location = [[San Marcos, Texas]]
|Status = Inactive
|Notes = Inactive since 2010.
|Reference = <ref>{{cite web|url=http://www.txstatesigmapi.org/ |title=Theta Upsilon Chapter of Sigma Pi Fraternity |publisher=Txstatesigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20071103141614/http://www.txstatesigmapi.org/ |archive-date=3 November 2007}}</ref>
}}{{FratChapter
|Chapter Name = Theta Phi
|Founded = 2007
|School = [[Pennsylvania College of Technology]]
|Location = [[Williamsport, Pennsylvania]]
|Status = Active
|Reference = 
}}{{FratChapter
|Chapter Name = Theta Chi
|Founded = 2007
|School = [[Saint Joseph's University]]
|Location = [[Philadelphia, Pennsylvania]]
|Status = Inactive
|Notes = Inactive since 2019.
|Reference = 
}}{{FratChapter
|Chapter Name = Theta Psi
|Founded = 2007
|School = [[University of Southern Indiana]]
|Location = [[Evansville, Indiana]]
|Status = Active
|Reference = 
}}{{FratChapter
|Chapter Name = Theta Omega
|Founded = 2007
|School = [[Middle Tennessee State University]]
|Location = [[Murfreesboro, Tennessee]]
|Status = Active
|Reference = <ref>{{cite web|url=http://www.mtsigmapi.org/ |title=Theta Omega Chapter of Sigma Pi Fraternity |publisher=Mtsigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20101113053900/http://www.mtsigmapi.org/ |archive-date=13 November 2010}}</ref>
}}{{FratChapter
|Chapter Name = Iota Alpha
|Founded = 2007
|School = [[Kansas State University]]
|Location = [[Manhattan, Kansas]]
|Status = Inactive
|Notes = Inactive since 2015.
|Reference = <ref>{{cite web|url=https://www.k-state.edu/sigmapi/ |title=Iota Alpha Chapter of Sigma Pi Fraternity |publisher=Kansas State University |accessdate=17 December 2008 |url-status=live |archive-url=https://web.archive.org/web/20100601165153/https://www.k-state.edu/sigmapi/ |archive-date=1 June 2010}}</ref>
}}{{FratChapter
|Chapter Name = Iota Beta
|Founded = 2007
|School = [[University of Delaware]]
|Location = [[Newark, Delaware]]
|Status = Active
|Notes = Inactive 2017–2022.
|Reference = <ref>{{cite magazine|last=DiVita|first=Jim|date=Fall 2007|volume=92|number=4|magazine=The Emerald of Sigma Pi|title=Sigma Pi Charters at the University of Delaware |page=14 |url=https://greek.historyit.com/sigma_pi/reader.php?id=157}}</ref>
}}{{FratChapter
|Chapter Name = Iota Gamma
|Founded = 2007
|School = [[Texas A&M University]]
|Location = [[College Station, Texas]]
|Status = Inactive
|Notes = Inactive since 2012.
|Reference = 
}}{{FratChapter
|Chapter Name = Iota Delta
|Founded = 2007
|School = [[University of Texas at San Antonio]]
|Location = [[San Antonio, Texas]]
|Status = Active
|Reference = 
}}{{FratChapter
|Chapter Name = Iota Epsilon
|Founded = 2007
|School = [[University of Oregon]]
|Location = [[Eugene, Oregon]]
|Status = Inactive
|Notes = Inactive since 2015.
|Reference = 
}}{{FratChapter
|Chapter Name = Iota Zeta
|Founded = 2008
|School = [[University of Minnesota]]
|Location = [[Minneapolis, Minnesota]]
|Status = Active
|Reference = 
}}{{FratChapter
|Chapter Name = Iota Eta
|Founded = 2009
|School = [[University of California, Santa Cruz]]
|Location = [[Santa Cruz, California]]
|Status = Active
|Reference = <ref>{{cite web |url=http://www.sigmapiucsc.org/ |title=Sigma Pi Colony at University of California, Santa Cruz |publisher=Sigmapiucsc.net |accessdate=23 January 2023 |url-status=dead |archive-url=https://web.archive.org/web/20180227021144/http://www.sigmapiucsc.org/ |archive-date=27 February 2018}}</ref>
}}{{FratChapter
|Chapter Name = Iota Theta
|Founded = 2009
|School = [[Bentley University]]
|Location = [[Waltham, Massachusetts]]
|Status = Active
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=249&grandChapterID=219 |title=Sigma Pi Chapter Information - Iota Theta Chapter |publisher=Sigmapi.org |accessdate=13 October 2009 |url-status=dead |archive-url=https://web.archive.org/web/20110928083928/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=249&grandChapterID=219 |archive-date=28 September 2011}}</ref>
}}{{FratChapter
|Chapter Name = Iota Iota
|Founded = 2009
|School = [[Montclair State University]]
|Location = [[Montclair, New Jersey]]
|Status = Active
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/chapterServices/chapter_info.cfm?id=247&grandChapterID=220 |title=Sigma Pi Chapter Information - Iota Iota Chapter |publisher=Sigmapi.org |accessdate=24 August 2009 |url-status=dead |archive-url=https://web.archive.org/web/20110717061017/http://www.sigmapi.org/chapterServices/chapter_info.cfm?id=247&grandChapterID=220 |archive-date=17 July 2011}}</ref>
}}{{FratChapter
|Chapter Name = Iota Kappa
|Founded = 2009
|School = [[University of Central Florida]]
|Location = [[Orlando, Florida]]
|Status = Active
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=250&grandChapterID=221 |title=Sigma Pi Chapter Information - Iota Kappa Chapter |publisher=Sigmapi.org |accessdate=13 October 2009 |url-status=dead |archive-url=https://web.archive.org/web/20110928083944/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=250&grandChapterID=221 |archive-date=28 September 2011}}</ref>
}}{{FratChapter
|Chapter Name = Iota Lambda
|Founded = 2009
|School = [[Arkansas Tech University]]
|Location = [[Russellville, Arkansas]]
|Status = Active
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=251&grandChapterID=222 |title=Sigma Pi Chapter Information - Iota Lambda Chapter |publisher=Sigmapi.org |accessdate=8 November 2011 |url-status=dead |archive-url=https://web.archive.org/web/20120205155046/http://www.sigmapi.org/chapterServices/chapter_info.cfm?id=251&grandChapterID=222 |archive-date=5 February 2012}}</ref>
}}{{FratChapter
|Chapter Name = Iota Mu
|Founded = 2009
|School = [[Georgia Institute of Technology]]
|Location = [[Atlanta, Georgia]]
|Status = Inactive
|Notes = Disbanded May 2017 due to lack of members.
|Reference = <ref>{{cite web|url=http://www.gtsigmapi.com/ |title=Sigma Pi Colony at Georgia Institute of Technology |publisher=Gtsigmapi.com |accessdate=8 November 2011 |url-status=dead |archive-url=https://web.archive.org/web/20140115005626/http://www.gtsigmapi.com/ |archive-date=15 January 2014}}</ref>
}}{{FratChapter
|Chapter Name = Iota Nu
|Founded = 2010
|School = [[Washington State University]]
|Location = [[Pullman, Washington]]
|Status = Active
|Reference = <ref>{{cite web|url=http://www.sigmapiwast.com/ |title=Sigma Pi Colony at Washington State University |publisher=Sigmapiwast.com |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080925202037/http://www.sigmapiwast.com/ |archive-date=25 September 2008}}</ref>
}}{{FratChapter
|Chapter Name = Iota Xi
|Founded = 2012
|School = [[Duke University]]
|Location = [[Durham, North Carolina]]
|Status = Inactive
|Notes = Inactive since 2016.
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=257&grandChapterID=1055 |title=Sigma Pi Chapter Information - Duke Colony |publisher=Sigmapi.org |accessdate=8 November 2011 |url-status=dead |archive-url=https://web.archive.org/web/20120206023750/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=257&grandChapterID=1055 |archive-date=6 February 2012}}</ref>
}}{{FratChapter
|Chapter Name = Iota Omicron
|Founded = 2012
|School = [[University of Louisville]]
|Location = [[Louisville, Kentucky]]
|Status = Inactive
|Notes = Inactive since 2022
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/chapterServices/chapter_info.cfm?id=255&grandChapterID=953 |title=Sigma Pi Chapter Information - Louisville Colony |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20110717060929/http://www.sigmapi.org/chapterServices/chapter_info.cfm?id=255&grandChapterID=953 |archive-date=17 July 2011}}</ref>
}}{{FratChapter
|Chapter Name = Iota Pi
|Founded = 2013
|School = [[Oklahoma State University]]
|Location = [[Stillwater, Oklahoma]]
|Status = Inactive
|Notes = Inactive since 2017
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=256&grandChapterID=1054 |title=Sigma Pi Chapter Information - Oklahoma State Colony |publisher=Sigmapi.org |accessdate=8 November 2011 |url-status=dead |archive-url=https://web.archive.org/web/20120207101518/http://www.sigmapi.org/ChapterServices/chapter_info.cfm?id=256&grandChapterID=1054 |archive-date=7 February 2012}}</ref>
}}{{FratChapter
|Chapter Name = Iota Rho
|Founded = 2014
|School = [[Keene State College]]
|Location = [[Keene, New Hampshire]]
|Status = Active
|Reference = <ref>{{cite web|url=http://www.sigmapi.org/chapterServices/chapter_info.cfm?id=253&grandChapterID=952 |title=Sigma Pi Chapter Information - Keene State Colony |publisher=Sigmapi.org |accessdate=17 December 2008 |url-status=dead |archive-url=https://web.archive.org/web/20110717060920/http://www.sigmapi.org/chapterServices/chapter_info.cfm?id=253&grandChapterID=952 |archive-date=17 July 2011}}</ref><ref>{{cite magazine|last=Morris|first=E. Andrew|date=Summer 2014|volume=98|number=3|magazine=The Emerald of Sigma Pi|title=Iota-Rho Charters at Keene State College |page=14 |url=https://greek.historyit.com/sigma_pi/reader.php?id=174}}</ref>
}}{{FratChapter
|Chapter Name = Iota Sigma
|Founded = 2015
|School = [[University of South Florida]]
|Location = [[Tampa, Florida]]
|Status = Active
}}{{FratChapter
|Chapter Name = Iota Tau
|Founded = 2015
|School = [[St. John's University (New York City)|St. John's University]]
|Location = [[Queens, New York]]
|Status = Active
}}{{FratChapter
|Chapter Name = Iota Upsilon
|Founded = 2016
|School = [[Stockton University]]
|Location = [[Galloway Township, New Jersey]]
|Status = Active
}}{{FratChapter
|Chapter Name = Iota Phi
|Founded = 2018
|School = [[Fairleigh Dickinson University, Florham|Fairleigh Dickinson University - Florham]]
|Location = [[Florham Park, New Jersey]]
|Status = Active 
}}{{FratChapter
|Chapter Name = Iota Chi
|Founded = 
|School = [[Coastal Carolina University]]
|Location = [[Conway, South Carolina]]
|Status = Colony 
}}{{FratChapter
|Chapter Name = Iota Psi
|Founded = 
|School = [[Kennesaw State University]]
|Location = [[Kennesaw, Georgia]]
|Status = Colony 
}}
{{FratChapter
|Chapter Name = Colony
|Founded = 
|School = [[Pfeiffer University]]
|Location = [[Misenheimer, North Carolina]]
|Status = Colony }}
{{FratChapter
|Chapter Name = Colony
|Founded = 
|School = [[Montana State University]]
|Location = [[Bozeman, Montana]]
|Status = Colony }}
{{FratChapter
|Chapter Name = Colony
|Founded = 
|School = [[Plymouth State University]]
|Location = [[Plymouth, New Hampshire]]
|Status = Colony }}
{{FratChapter
|Chapter Name = Colony
|Founded = 
|School = [[University of Maine]]
|Location = [[Orono, Maine]]
|Status = Colony }}

{{FratChapterEnd}}

==Statistics==

'''Original Charters by Decade'''

{| class="wikitable sortable"
|-
! scope="col" | Decade
! scope="col" | Total Charters
|-
| '''1890-1899''' || 1
|-
| '''1900-1909''' || 4
|-
| '''1910-1919''' || 9
|-
| '''1920-1929''' || 14
|-
| '''1930-1939''' || 7
|-
| '''1940-1949''' || 13
|-
| '''1950-1959''' || 15
|-
| '''1960-1969''' || 39
|-
| '''1970-1979''' || 28
|-
| '''1980-1989''' || 42
|-
| '''1990-1999''' || 18
|-
| '''2000-2009''' || 33
|-
| '''2010-current''' || 9
|}

'''Charters by State or Province'''

There have never been Sigma Pi chapters in the states of [[Alaska]], [[Hawaii]], [[Idaho]], [[Maine]], [[Montana]], [[Nebraska]], [[North Dakota]], [[South Dakota]], [[Vermont]], [[Wyoming]], or the [[District of Columbia]].  All of the fraternity's Canadian chapters have been in the province of [[Ontario]].

{| class="wikitable sortable"
|-
! scope="col" | State
! scope="col" | Total
|-
| [[Alabama]] || 4
|-
| [[Arizona]] || 4
|-
| [[Arkansas]] || 4
|-
| [[California]] || 22
|-
| [[Colorado]] || 4
|-
| [[Connecticut]] || 3
|-
| [[Delaware]] || 1
|-
| [[Florida]] || 6
|-
| [[Georgia (U.S. state)|Georgia]] || 7
|-
| [[Illinois]] || 10
|-
| [[Indiana]] || 9
|-
| [[Iowa]] || 3
|-
| [[Kansas]] || 3
|-
| [[Kentucky]] || 5
|-
| [[Louisiana]] || 5
|-
| [[Maryland]] || 3
|-
| [[Massachusetts]] || 4
|-
| [[Michigan]] || 13
|-
| [[Minnesota]] || 1
|-
| [[Mississippi]] || 2
|-
| [[Missouri]] || 8
|-
| [[Nevada]] || 1
|-
| [[New Hampshire]] || 1
|-
| [[New Jersey]] || 11
|-
| [[New Mexico]] || 1
|-
| [[New York (state)|New York]] || 11
|-
| [[North Carolina]] || 8
|-
| [[Ohio]] || 8
|-
| [[Oklahoma]] || 2
|-
| [[Ontario]] || 3
|-
| [[Oregon]] || 2
|-
| [[Pennsylvania]] || 25
|-
| [[Rhoda Island]] || 2
|-
| [[South Carolina]] || 1
|-
| [[Tennessee]] || 2
|-
| [[Texas]] || 7
|-
| [[Utah]] || 3
|-
| [[Virginia]] || 8
|-
| [[Washington (state)|Washington]] || 2
|-
| [[West Virginia]] || 4
|-
| [[Wisconsin]] || 9
|}

==References==
{{Reflist}}

{{DEFAULTSORT:Sigma Pi}}
[[Category:Lists of chapters of North American Interfraternity Conference members by society]]
[[Category:Sigma Pi|chapters]]