Metropolitan statistical area: Difference between revisions
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==Definitions== | ==Definitions== | ||
[[File:CBSA WallMap Jul2023.pdf|thumb|An enlargeable map of the 935 [[core-based statistical area]]s (CBSAs) of the [[United States]] and [[Puerto Rico]] as of 2023; the 393 MSAs are shown in <span style="color:#008060;"> | [[File:CBSA WallMap Jul2023.pdf|thumb|An enlargeable map of the 935 [[core-based statistical area]]s (CBSAs) of the [[United States]] and [[Puerto Rico]] as of 2023; the 393 MSAs are shown in <span style="color:#008060;">green</span>.<ref name="Revision 2023" />]] | ||
The U.S. [[Office of Management and Budget]] defines a set of [[core based statistical | The U.S. [[Office of Management and Budget]] defines a set of [[Core-based statistical area|core-based statistical areas]] (CBSAs) throughout the country, which are composed of [[List of United States counties and county equivalents|counties and county equivalents]].<ref>[https://www.census.gov/geo/lv4help/cengeoglos.html Census Geographic Glossary] {{Webarchive|url=https://web.archive.org/web/20120927004858/http://www.census.gov/geo/lv4help/cengeoglos.html |date=September 27, 2012 }}, U.S. Census Bureau</ref> | ||
CBSAs are delineated on the basis of a central contiguous area of relatively high population density, known as an [[United States urban area|urban area]]. The counties containing the core urban area are known as the "central counties" of the CBSA; these are defined as having at least 50% of their population living in [[List of United States urban areas|urban areas]] of at least 10,000 in population.<ref name="OFR">{{cite web |title=2020 Standards for Delineating Core Based Statistical Areas |url=https://www.federalregister.gov/documents/2021/07/16/2021-15159/2020-standards-for-delineating-core-based-statistical-areas#:~:text=The%20general%20concept%20of%20a%20core%20based%20statistical,a%20high%20degree%20of%20integration%20with%20that%20nucleus. |website=Federal Register | date=July 16, 2021 |publisher=National Archives and Records Administration |access-date=6 February 2024}}</ref> Additional surrounding counties, known as "outlying counties", can be included in the CBSA if these counties have strong social and economic ties to the central county or counties as measured by [[commuting]] and employment. Outlying counties are included in the CBSA if 25% of the workers living in the county work in the central county or counties, or if 25% of the employment in the county is held by workers who live in the central county or counties. | CBSAs are delineated on the basis of a central contiguous area of relatively high population density, known as an [[United States urban area|urban area]]. The counties containing the core urban area are known as the "central counties" of the CBSA; these are defined as having at least 50% of their population living in [[List of United States urban areas|urban areas]] of at least 10,000 in population.<ref name="OFR">{{cite web |title=2020 Standards for Delineating Core Based Statistical Areas |url=https://www.federalregister.gov/documents/2021/07/16/2021-15159/2020-standards-for-delineating-core-based-statistical-areas#:~:text=The%20general%20concept%20of%20a%20core%20based%20statistical,a%20high%20degree%20of%20integration%20with%20that%20nucleus. |website=Federal Register | date=July 16, 2021 |publisher=National Archives and Records Administration |access-date=6 February 2024}}</ref> Additional surrounding counties, known as "outlying counties", can be included in the CBSA if these counties have strong social and economic ties to the central county or counties as measured by [[commuting]] and employment. Outlying counties are included in the CBSA if 25% of the workers living in the county work in the central county or counties, or if 25% of the employment in the county is held by workers who live in the central county or counties. | ||
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Adjacent CBSAs are merged into a single CBSA when the central county or counties of one CBSA qualify as an outlying county or counties to the other CBSAs.<ref name="OFR"/> One or more CBSAs may be grouped together or combined to form a larger statistical entity known as a [[combined statistical area]] (CSA) when the employment interchange measure (EIM) reaches 15% or more. | Adjacent CBSAs are merged into a single CBSA when the central county or counties of one CBSA qualify as an outlying county or counties to the other CBSAs.<ref name="OFR"/> One or more CBSAs may be grouped together or combined to form a larger statistical entity known as a [[combined statistical area]] (CSA) when the employment interchange measure (EIM) reaches 15% or more. | ||
CBSAs are subdivided into MSAs (formed around urban areas of at least 50,000 in population) and [[micropolitan statistical area]]s (μSAs), which are CBSAs built around an urban area of at least 10,000 in population but less than 50,000 in population. Some metropolitan areas may include multiple cities below 50,000 people, but combined have over 50,000 people.<ref name="OFR"/> Previous terms that are no longer used to describe these regions include "standard metropolitan statistical area" (SMSA) and "primary metropolitan statistical area" (PMSA).<ref>{{cite web |url=https://www.census.gov/population/www/metroareas/metroarea.html |title=Metropolitan and Micropolitan Statistical Areas |publisher=U.S. Census Bureau |access-date=February 16, 2010 |archive-date=September 23, 2011 |archive-url=https://web.archive.org/web/20110923210008/http://www.census.gov/population/www/metroareas/metroarea.html |url-status=live }}</ref> | CBSAs are subdivided into MSAs (formed around urban areas of at least 50,000 in population) and [[micropolitan statistical area]]s (μSAs), which are CBSAs built around an urban area of at least 10,000 in population but less than 50,000 in population. Some metropolitan areas may include multiple cities below 50,000 people, but combined have over 50,000 people.<ref name="OFR"/> Previous terms that are no longer used to describe these regions include "standard metropolitan statistical area" (SMSA) and "primary metropolitan statistical area" (PMSA).<ref>{{cite web |url=https://www.census.gov/population/www/metroareas/metroarea.html |title=Metropolitan and Micropolitan Statistical Areas |publisher=U.S. Census Bureau |access-date=February 16, 2010 |archive-date=September 23, 2011 |archive-url=https://web.archive.org/web/20110923210008/http://www.census.gov/population/www/metroareas/metroarea.html |url-status=live }}</ref> Metropolitan statistical areas containing over 2.5 million people can also be further divided into metropolitan divisions.<ref>{{cite-web|url=https://www.census.gov/programs-surveys/metro-micro/about/glossary.html|title=Glossary|publisher=US Census Bureau|access-date=October 11, 2025}}</ref> | ||
On January 19, 2021, OMB submitted a regulation for public comment that would increase the minimum population needed for an urban area population to be a metropolitan statistical area to be increased from 50,000 to 100,000.<ref>{{Cite web|date=January 19, 2021|title=Recommendations From the Metropolitan and Micropolitan Statistical Area Standards Review Committee to the Office of Management and Budget Concerning Changes to the 2010 Standards for Delineating Metropolitan and Micropolitan Statistical Areas|url=https://www.federalregister.gov/documents/2021/01/19/2021-00988/recommendations-from-the-metropolitan-and-micropolitan-statistical-area-standards-review-committee|access-date=January 21, 2021|website=Federal Register|archive-date=January 20, 2021|archive-url=https://web.archive.org/web/20210120231126/https://www.federalregister.gov/documents/2021/01/19/2021-00988/recommendations-from-the-metropolitan-and-micropolitan-statistical-area-standards-review-committee|url-status=live}}</ref> It ultimately decided to keep the minimum at 50,000 for the 2020 cycle.<ref>{{cite press release|title=Office of Management and Budget Announces 2020 Standards for Delineating Core Based Statistical Areas|url=https://bidenwhitehouse.archives.gov/omb/briefing-room/2021/07/13/office-of-management-and-budget-announces-2020-standards-for-delineating-core-based-statistical-areas/|author=[[White House|The White House]]|date=July 13, 2021|access-date=July 17, 2021|archive-date=July 16, 2021|archive-url=https://web.archive.org/web/20210716233710/https://www.whitehouse.gov/omb/briefing-room/2021/07/13/office-of-management-and-budget-announces-2020-standards-for-delineating-core-based-statistical-areas/|url-status=live}}</ref> | On January 19, 2021, OMB submitted a regulation for public comment that would increase the minimum population needed for an urban area population to be a metropolitan statistical area to be increased from 50,000 to 100,000.<ref>{{Cite web|date=January 19, 2021|title=Recommendations From the Metropolitan and Micropolitan Statistical Area Standards Review Committee to the Office of Management and Budget Concerning Changes to the 2010 Standards for Delineating Metropolitan and Micropolitan Statistical Areas|url=https://www.federalregister.gov/documents/2021/01/19/2021-00988/recommendations-from-the-metropolitan-and-micropolitan-statistical-area-standards-review-committee|access-date=January 21, 2021|website=Federal Register|archive-date=January 20, 2021|archive-url=https://web.archive.org/web/20210120231126/https://www.federalregister.gov/documents/2021/01/19/2021-00988/recommendations-from-the-metropolitan-and-micropolitan-statistical-area-standards-review-committee|url-status=live}}</ref> It ultimately decided to keep the minimum at 50,000 for the 2020 cycle.<ref>{{cite press release|title=Office of Management and Budget Announces 2020 Standards for Delineating Core Based Statistical Areas|url=https://bidenwhitehouse.archives.gov/omb/briefing-room/2021/07/13/office-of-management-and-budget-announces-2020-standards-for-delineating-core-based-statistical-areas/|author=[[White House|The White House]]|date=July 13, 2021|access-date=July 17, 2021|archive-date=July 16, 2021|archive-url=https://web.archive.org/web/20210716233710/https://www.whitehouse.gov/omb/briefing-room/2021/07/13/office-of-management-and-budget-announces-2020-standards-for-delineating-core-based-statistical-areas/|url-status=live}}</ref> | ||
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The Census Bureau created the metropolitan district for the [[1910 United States census|1910 census]] as a standardized classification for large urban centers and their surrounding areas. The original threshold for a metropolitan district was 200,000, but was lowered to 100,000 in 1930 and 50,000 in 1940.<ref name="CES-Definition">{{cite report |last=Gardner |first=Todd |date=February 2021 |title=Changes in Metropolitan Area Definition, 1910–2010 |pages=5–6, 12 |url=https://www2.census.gov/ces/wp/2021/CES-WP-21-04.pdf |publisher=United States Census Bureau |department=[[Center for Economic Studies (U.S. Census Bureau)|Center for Economic Studies]] |accessdate=January 26, 2024}}</ref> The metropolitan districts were replaced by standard metropolitan areas (SMAs) in the [[1950 United States census|1950 census]], which were defined by the Bureau of the Budget (now the Office of Management and Budget) and later renamed to standard metropolitan statistical areas (SMAs) in 1959.<ref name="CES-Definition"/><ref name="History">{{cite web |title=History: Metropolitan Areas |url=https://www.census.gov/history/www/programs/geography/metropolitan_areas.html |publisher=United States Census Bureau |accessdate=January 26, 2024}}</ref> The modern metropolitan statistical area was created in 1983 amid a large increase in the number of eligible markets, which grew from 172 in 1950 to 288 in 1980;<ref name="CES-Definition"/><ref>{{cite news |date=December 28, 1980 |title=Census Makes a 'Metropolis' |page=E2 |work=[[Seattle Post-Intelligencer]]}}</ref> the core based statistical area (CBSA) was introduced in 2000 and defined in 2003 with a minimum population of 10,000 required for micropolitan areas and 50,000 for urban areas.<ref name="CES-Definition"/><ref name="History"/> | The Census Bureau created the metropolitan district for the [[1910 United States census|1910 census]] as a standardized classification for large urban centers and their surrounding areas. The original threshold for a metropolitan district was 200,000, but was lowered to 100,000 in 1930 and 50,000 in 1940.<ref name="CES-Definition">{{cite report |last=Gardner |first=Todd |date=February 2021 |title=Changes in Metropolitan Area Definition, 1910–2010 |pages=5–6, 12 |url=https://www2.census.gov/ces/wp/2021/CES-WP-21-04.pdf |publisher=United States Census Bureau |department=[[Center for Economic Studies (U.S. Census Bureau)|Center for Economic Studies]] |accessdate=January 26, 2024}}</ref> The metropolitan districts were replaced by standard metropolitan areas (SMAs) in the [[1950 United States census|1950 census]], which were defined by the Bureau of the Budget (now the Office of Management and Budget) and later renamed to standard metropolitan statistical areas (SMAs) in 1959.<ref name="CES-Definition"/><ref name="History">{{cite web |title=History: Metropolitan Areas |url=https://www.census.gov/history/www/programs/geography/metropolitan_areas.html |publisher=United States Census Bureau |accessdate=January 26, 2024}}</ref> The modern metropolitan statistical area was created in 1983 amid a large increase in the number of eligible markets, which grew from 172 in 1950 to 288 in 1980;<ref name="CES-Definition"/><ref>{{cite news |date=December 28, 1980 |title=Census Makes a 'Metropolis' |page=E2 |work=[[Seattle Post-Intelligencer]]}}</ref> the core based statistical area (CBSA) was introduced in 2000 and defined in 2003 with a minimum population of 10,000 required for micropolitan areas and 50,000 for urban areas.<ref name="CES-Definition"/><ref name="History"/> | ||
== | == United States == | ||
The 387 MSAs in the [[United States]], including those in all 50 states and the national capital of [[Washington, D.C.]] are ranked, including: | The 387 MSAs in the [[United States]], including those in all 50 states and the national capital of [[Washington, D.C.]] are ranked, including: | ||
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#The MSA name as designated by the [[United States Office of Management and Budget]]<ref name="Revision 2023"/> | #The MSA name as designated by the [[United States Office of Management and Budget]]<ref name="Revision 2023"/> | ||
#The MSA population as of July 1, 2024, as estimated by the United States Census Bureau<ref name=PopEstCBSA/> | #The MSA population as of July 1, 2024, as estimated by the United States Census Bureau<ref name=PopEstCBSA/> | ||
#The MSA population as of April 1, 2020, as enumerated by the [[2020 United States census]]<ref name=PopEstCBSA/>{{efn|name=2023Adj|Populations adjusted for new MSA delineations as redefined in 2023}} | #The MSA population as of April 1, 2020, as enumerated by the [[2020 United States census]]<ref name=PopEstCBSA/>{{efn|name=2023Adj|Populations retroactively adjusted to account for new MSA delineations as redefined in 2023. This number reflects what the 2020 Census ''would have'' shown the population to be had the current delineated boundaries been in effect at the time of the 2020 Census.}} | ||
#The percent MSA population change from April 1, 2020, to July 1, 2024<ref name=PopEstCBSA/> | #The percent MSA population change from April 1, 2020, to July 1, 2024<ref name=PopEstCBSA/> | ||
#The [[combined statistical area]] (CSA){{efn|name=CSA|The U.S.[[Office of Management and Budget]] (OMB) defines a [[Combined statistical area|CSA]] (CSA) as an aggregate of adjacent [[core-based statistical area]]s that are linked by commuting ties.}} if it is designated and the MSA is a component<ref name="OMB_20-01">{{cite web |date=March 6, 2020 |title=OMB Bulletin No. 20-01: Revised Delineations of Metropolitan Statistical Areas, Micropolitan Statistical Areas, and Combined Statistical Areas, and Guidance on Uses of the Delineations of These Areas |url=https://bidenwhitehouse.archives.gov/wp-content/uploads/2020/03/Bulletin-20-01.pdf |access-date=April 24, 2020 |publisher=[[United States Office of Management and Budget]] |archive-date=June 12, 2021 |archive-url=https://web.archive.org/web/20210612175830/https://www.whitehouse.gov/wp-content/uploads/2020/03/Bulletin-20-01.pdf |url-status=live }}</ref> | #The [[combined statistical area]] (CSA){{efn|name=CSA|The U.S.[[Office of Management and Budget]] (OMB) defines a [[Combined statistical area|CSA]] (CSA) as an aggregate of adjacent [[core-based statistical area]]s that are linked by commuting ties.}} if it is designated and the MSA is a component<ref name="OMB_20-01">{{cite web |date=March 6, 2020 |title=OMB Bulletin No. 20-01: Revised Delineations of Metropolitan Statistical Areas, Micropolitan Statistical Areas, and Combined Statistical Areas, and Guidance on Uses of the Delineations of These Areas |url=https://bidenwhitehouse.archives.gov/wp-content/uploads/2020/03/Bulletin-20-01.pdf |access-date=April 24, 2020 |publisher=[[United States Office of Management and Budget]] |archive-date=June 12, 2021 |archive-url=https://web.archive.org/web/20210612175830/https://www.whitehouse.gov/wp-content/uploads/2020/03/Bulletin-20-01.pdf |url-status=live }}</ref> | ||
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! Metropolitan statistical area | ! Metropolitan statistical area | ||
! 2024{{br}}estimate | ! 2024{{br}}estimate | ||
! 2020{{br}}census | ! 2020{{br}}census{{efn|name=2023Adj}} | ||
! %{{br}}change | ! %{{br}}change | ||
! Encompassing combined statistical area | ! Encompassing combined statistical area | ||
| Line 63: | Line 63: | ||
|<!-- 19100 -->[[Dallas–Fort Worth metroplex|Dallas–Fort Worth–Arlington, TX MSA]] | |<!-- 19100 -->[[Dallas–Fort Worth metroplex|Dallas–Fort Worth–Arlington, TX MSA]] | ||
| {{change|invert=on|8344032|7637387}} | | {{change|invert=on|8344032|7637387}} | ||
|<!-- 206 -->[[ | |<!-- 206 -->[[Dallas–Fort Worth metroplex#Combined statistical area|Dallas–Fort Worth, TX-OK CSA]] | ||
|- | |- | ||
|<!-- 26420 -->[[Greater Houston|Houston–Pasadena–The Woodlands, TX MSA]] | |<!-- 26420 -->[[Greater Houston|Houston–Pasadena–The Woodlands, TX MSA]] | ||
| Line 81: | Line 81: | ||
|<!-- 122 -->[[Atlanta metropolitan area|Atlanta–Athens-Clarke County–Sandy Springs, GA-AL CSA]] | |<!-- 122 -->[[Atlanta metropolitan area|Atlanta–Athens-Clarke County–Sandy Springs, GA-AL CSA]] | ||
|- | |- | ||
|<!-- 37980 -->[[ | |<!-- 37980 -->[[Philadelphia metropolitan area|Philadelphia–Camden–Wilmington, PA-NJ-DE-MD MSA]] | ||
| {{change|invert=on|6330422|6245051}} | | {{change|invert=on|6330422|6245051}} | ||
|<!-- 428 -->[[ | |<!-- 428 -->[[Philadelphia metropolitan area|Philadelphia–Reading–Camden, PA-NJ-DE-MD CSA]] | ||
|- | |- | ||
|<!-- 38060 -->[[Phoenix metropolitan area|Phoenix–Mesa–Chandler, AZ MSA]] | |<!-- 38060 -->[[Phoenix metropolitan area|Phoenix–Mesa–Chandler, AZ MSA]] | ||
| Line 543: | Line 543: | ||
|<!-- 39740 -->[[Reading, PA MSA]] | |<!-- 39740 -->[[Reading, PA MSA]] | ||
| {{change|invert=on|439117|428849}} | | {{change|invert=on|439117|428849}} | ||
|<!-- 428 -->[[ | |<!-- 428 -->[[Philadelphia metropolitan area|Philadelphia–Reading–Camden, PA-NJ-DE-MD CSA]] | ||
|- | |- | ||
|<!-- 41500 -->[[Salinas, CA MSA]] | |<!-- 41500 -->[[Salinas, CA MSA]] | ||
| Line 655: | Line 655: | ||
|<!-- 12100 -->[[Atlantic County, New Jersey|Atlantic City–Hammonton, NJ MSA]] | |<!-- 12100 -->[[Atlantic County, New Jersey|Atlantic City–Hammonton, NJ MSA]] | ||
| {{change|invert=on|372989|369797}} | | {{change|invert=on|372989|369797}} | ||
|<!-- 428 -->[[ | |<!-- 428 -->[[Philadelphia metropolitan area|Philadelphia–Reading–Camden, PA-NJ-DE-MD CSA]] | ||
|- | |- | ||
|<!-- 24540 -->[[Greeley, CO MSA]] | |<!-- 24540 -->[[Greeley, CO MSA]] | ||
| Line 995: | Line 995: | ||
|<!-- 20100 -->[[Dover, DE MSA]] | |<!-- 20100 -->[[Dover, DE MSA]] | ||
| {{change|invert=on|192690|181851}} | | {{change|invert=on|192690|181851}} | ||
|<!-- 428 -->[[ | |<!-- 428 -->[[Philadelphia metropolitan area|Philadelphia–Reading–Camden, PA-NJ-DE-MD CSA]] | ||
|- | |- | ||
|<!-- 13740 -->[[Billings, MT MSA]] | |<!-- 13740 -->[[Billings, MT MSA]] | ||
| Line 1,175: | Line 1,175: | ||
|<!-- 47220 -->[[Vineland-Bridgeton, NJ MSA|Vineland, NJ MSA]] | |<!-- 47220 -->[[Vineland-Bridgeton, NJ MSA|Vineland, NJ MSA]] | ||
| {{change|invert=on|155678|154152}} | | {{change|invert=on|155678|154152}} | ||
|<!-- 428 -->[[ | |<!-- 428 -->[[Philadelphia metropolitan area|Philadelphia–Reading–Camden, PA-NJ-DE-MD CSA]] | ||
|- | |- | ||
|<!-- 25260 -->[[Hanford-Corcoran, CA MSA|Hanford–Corcoran, CA MSA]] | |<!-- 25260 -->[[Hanford-Corcoran, CA MSA|Hanford–Corcoran, CA MSA]] | ||
| Line 1,259: | Line 1,259: | ||
|<!-- 48140 -->[[Wausau-Weston, WI MSA|Wausau, WI MSA]] | |<!-- 48140 -->[[Wausau-Weston, WI MSA|Wausau, WI MSA]] | ||
| {{change|invert=on|139091|138013}} | | {{change|invert=on|139091|138013}} | ||
|<!-- 554 -->[[ | |<!-- 554 -->[[Marathon County, Wisconsin|Wausau–Stevens Point–Wisconsin Rapids, WI CSA]] | ||
|- | |- | ||
|<!-- 25500 -->[[Harrisonburg, VA MSA]] | |<!-- 25500 -->[[Harrisonburg, VA MSA]] | ||
| Line 1,619: | Line 1,619: | ||
!Metropolitan statistical area | !Metropolitan statistical area | ||
!2024 estimate | !2024 estimate | ||
!2020 census | !2020 census{{efn|name=2023Adj}} | ||
!Change | !Change | ||
!Encompassing combined statistical area | !Encompassing combined statistical area | ||
| Line 1,658: | Line 1,658: | ||
==See also== | ==See also== | ||
{{portal|Geography | {{portal|Geography|United States|Puerto Rico}} | ||
*[[Demographics of the United States]] | * [[United States|United States of America]] | ||
**[[United States Census Bureau]] | ** [[Outline of the United States]] | ||
***[[List of U.S. states and territories by population]] | * [[Demographics of the United States]] | ||
***[[List of United States cities by population]] | ** [[United States Census Bureau]] | ||
***[[List of United States counties and county | *** [[List of U.S. states and territories by population]] | ||
*** [[List of United States cities by population]] | |||
*** [[List of United States counties and county equivalents]] | |||
**[[Office of Management and Budget|United States Office of Management and Budget]] | **[[Office of Management and Budget|United States Office of Management and Budget]] | ||
***[[Statistical area (United States)]] | ***[[Statistical area (United States)]] | ||
****[[Combined statistical area]] | ****[[Combined statistical area]] | ||
****[[Core-based statistical area]] ([[List of core-based statistical areas | ****[[Core-based statistical area]] ([[List of core-based statistical areas#United States|list]]) | ||
*****[[Micropolitan statistical area]] | |||
*****[[Micropolitan statistical area]] | |||
== Footnotes == | == Footnotes == | ||
Latest revision as of 20:41, 19 November 2025
Template:Short description Template:U.S. city population tables Template:Use mdy dates In the United States, a metropolitan statistical area (MSA) is a geographical region with a relatively high population density at its core and close economic ties throughout the region.[1][2] Such regions are not legally incorporated as a city or town would be and are not legal administrative divisions like counties or separate entities such as states. As a result, sometimes the precise definition of a given metropolitan area will vary between sources. The statistical criteria for a standard metropolitan area were defined in 1949 and redefined as a metropolitan statistical area in 1983.[3]
Due to suburbanization, the typical metropolitan area is polycentric rather than being centered around a large historic core city such as New York City or Chicago.[4] Some metropolitan areas include more than one large historic core city; examples include the Dallas–Fort Worth metroplex, Virginia Beach–Norfolk–Newport News (Hampton Roads), Riverside–San Bernardino (Inland Empire), and Minneapolis–Saint Paul (Twin Cities).
MSAs are defined by the Office of Management and Budget (OMB), which is part of the Executive Office of the President, and are used by the U.S. Census Bureau and other U.S. federal government agencies for statistical purposes.[5]
Definitions
The U.S. Office of Management and Budget defines a set of core-based statistical areas (CBSAs) throughout the country, which are composed of counties and county equivalents.[7]
CBSAs are delineated on the basis of a central contiguous area of relatively high population density, known as an urban area. The counties containing the core urban area are known as the "central counties" of the CBSA; these are defined as having at least 50% of their population living in urban areas of at least 10,000 in population.[8] Additional surrounding counties, known as "outlying counties", can be included in the CBSA if these counties have strong social and economic ties to the central county or counties as measured by commuting and employment. Outlying counties are included in the CBSA if 25% of the workers living in the county work in the central county or counties, or if 25% of the employment in the county is held by workers who live in the central county or counties.
Adjacent CBSAs are merged into a single CBSA when the central county or counties of one CBSA qualify as an outlying county or counties to the other CBSAs.[8] One or more CBSAs may be grouped together or combined to form a larger statistical entity known as a combined statistical area (CSA) when the employment interchange measure (EIM) reaches 15% or more.
CBSAs are subdivided into MSAs (formed around urban areas of at least 50,000 in population) and micropolitan statistical areas (μSAs), which are CBSAs built around an urban area of at least 10,000 in population but less than 50,000 in population. Some metropolitan areas may include multiple cities below 50,000 people, but combined have over 50,000 people.[8] Previous terms that are no longer used to describe these regions include "standard metropolitan statistical area" (SMSA) and "primary metropolitan statistical area" (PMSA).[9] Metropolitan statistical areas containing over 2.5 million people can also be further divided into metropolitan divisions.[10]
On January 19, 2021, OMB submitted a regulation for public comment that would increase the minimum population needed for an urban area population to be a metropolitan statistical area to be increased from 50,000 to 100,000.[11] It ultimately decided to keep the minimum at 50,000 for the 2020 cycle.[12]
On July 21, 2023, the Office of Management and Budget released revised delineations of the various CBSAs in the United States.[6]
History
The Census Bureau created the metropolitan district for the 1910 census as a standardized classification for large urban centers and their surrounding areas. The original threshold for a metropolitan district was 200,000, but was lowered to 100,000 in 1930 and 50,000 in 1940.[13] The metropolitan districts were replaced by standard metropolitan areas (SMAs) in the 1950 census, which were defined by the Bureau of the Budget (now the Office of Management and Budget) and later renamed to standard metropolitan statistical areas (SMAs) in 1959.[13][14] The modern metropolitan statistical area was created in 1983 amid a large increase in the number of eligible markets, which grew from 172 in 1950 to 288 in 1980;[13][15] the core based statistical area (CBSA) was introduced in 2000 and defined in 2003 with a minimum population of 10,000 required for micropolitan areas and 50,000 for urban areas.[13][14]
United States
The 387 MSAs in the United States, including those in all 50 states and the national capital of Washington, D.C. are ranked, including:
- The MSA rank by population as of July 1, 2024, as estimated by the United States Census Bureau[16]
- The MSA name as designated by the United States Office of Management and Budget[6]
- The MSA population as of July 1, 2024, as estimated by the United States Census Bureau[16]
- The MSA population as of April 1, 2020, as enumerated by the 2020 United States census[16]Template:Efn
- The percent MSA population change from April 1, 2020, to July 1, 2024[16]
- The combined statistical area (CSA)Template:Efn if it is designated and the MSA is a component[17]
Template:Sticky headerTemplate:Static row numbersTemplate:Sort under
Puerto Rico
This sortable table lists the six metropolitan statistical areas (MSAs) of Puerto Rico including:
- The MSA rank by population as of July 1, 2024, as estimated by the United States Census Bureau[16]
- The MSA name as designated by the United States Office of Management and Budget[6]
- The MSA population as of July 1, 2024, as estimated by the United States Census Bureau[16]
- The MSA population as of April 1, 2020, as enumerated by the 2020 United States census[16]Template:Efn
- The percent MSA population change from April 1, 2020, to July 1, 2024[16]
- The combined statistical area (CSA)Template:Efn if the MSA is a component[17]
| Rank | Metropolitan statistical area | 2024 estimate | 2020 censusTemplate:Efn | Change | Encompassing combined statistical area |
|---|---|---|---|---|---|
| Template:Nts | San Juan–Bayamón–Caguas, PR MSA | Template:Change | San Juan–Bayamón, PR Combined Statistical Area | ||
| Template:Nts | Ponce, PR MSA | Template:Change | Ponce–Coamo, PR Combined Statistical Area | ||
| Template:Nts | Aguadilla, PR MSA | Template:Change | Mayagüez–Aguadilla, PR Combined Statistical Area | ||
| Template:Nts | Mayagüez, PR MSA | Template:Change | Mayagüez–Aguadilla, PR Combined Statistical Area | ||
| Template:Nts | Arecibo, PR MSA | Template:Change | San Juan–Bayamón, PR Combined Statistical Area | ||
| Template:Nts | Guayama, PR MSA | Template:Change | San Juan–Bayamón, PR Combined Statistical Area |
See also
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- United States of America
- Demographics of the United States
Footnotes
References
External links
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Template:Largest metropolitan areas of the United States Template:USCensus Geography Template:Authority control
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- ↑ Census Geographic Glossary Template:Webarchive, U.S. Census Bureau
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