Political party strength in Iowa

Template:Short description The following table indicates the party of elected officials in the U.S. state of Iowa:

• Governor
• Lieutenant Governor
• Secretary of State
• Attorney General
• State Auditor
• State Treasurer
• Secretary of Agriculture

The table also indicates the historical party composition in the:

• State Senate
• State House of Representatives
• State delegation to the U.S. Senate
• State delegation to the U.S. House of Representatives

For years in which a presidential election was held, the table indicates which party's nominees received the state's electoral votes.

1846–1920

Year	Executive offices						General Assembly		United States Congress			Electoral votes
	Governor	Lt. Governor	Sec. of State	Attorney Gen.	Auditor	Treasurer	State Senate	State House	U.S. Senator (Class II)	U.S. Senator (Class III)	U.S. House
1846	rowspan=5 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Ansel Briggs (D)	no such office	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Elisha Cutler Jr. (D)	no such office	rowspan="4" style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Joseph T. Fales (D)	rowspan="4" style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Morgan Reno (D)	rowspan=3 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|12D, 6W	rowspan=3 style="background-color:Template:Party color"|23W, 17D			rowspan=3 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|2D
1847	rowspan=12 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|George Wallace Jones (D)		rowspan=8 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Augustus C. Dodge (D)
1848	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Josiah H. Bonney (D)		rowspan=4 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Lewis Cass/ William O. Butler (D) Red XN
1849	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|11D, 8W		rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|28D, 11W		rowspan=2 Template:Party shading/Tie|1D, 1W
1850	rowspan=6 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|George W. McCleary (D)		rowspan=4 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|William Pattee (D)		rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Israel Kister (D)
1851	rowspan=4 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Stephen P. Hempstead (D)		rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|13D, 5W		rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|34D, 5W	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|2D
1852	rowspan=7 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Martin L. Morris (D)		rowspan=4 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Franklin Pierce/ William R. King (D) Green tickY
1853	rowspan=3 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|David C. Cloud (D)		rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|20D, 11W	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|40D, 23W	rowspan=4 Template:Party shading/Tie|1D, 1W
1854	style="background-color:Template:Party color"|Andrew J. Stevens (W)
1855	rowspan=3 style="background-color:Template:Party color"|James W. Grimes (W)		rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|John Pattee (R)	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|17D, 14W	rowspan=2 style="background-color:Template:Party color"|40W, 31D	James Harlan (FS)
1856	rowspan=7 style="background-color:Template:Republican Party (US)/meta/shading"|Elijah Sells (R)		rowspan=5 style="background-color:Template:Republican Party (US)/meta/shading"|Samuel Allen Rice (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|John C. Frémont/ William L. Dayton (R) Red XN
1857	style="background-color:Template:Republican Party (US)/meta/shading"|23R, 12D		style="background-color:Template:Republican Party (US)/meta/shading"|44R, 26D	rowspan=8 style="background-color:Template:Republican Party (US)/meta/shading"|James Harlan (R)	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|2R
1858	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|Ralph P. Lowe (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|Oran Faville (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|22R, 14DTemplate:Efn	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|42R, 30DTemplate:Efn
1859	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|Jonathan W. Battel (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|John W. Jones (R)	rowspan=11 style="background-color:Template:Republican Party (US)/meta/shading"|James W. Grimes (R)
1860	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Samuel J. Kirkwood (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|Nicholas J. Rusch (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|23R, 20D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|49R, 37D	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Abraham Lincoln/ Hannibal Hamlin (R) Green tickY
1861	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Charles C. Nourse (R)
1862	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|John R. Needham (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|32R, 14D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|60R, 34D
1863	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|James Wright (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|William H. Holmes (R)	rowspan=10 style="background-color:Template:Republican Party (US)/meta/shading"|6R
1864	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|William M. Stone (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|Enoch W. Eastman (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|42R, 4D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|87R, 5D	rowspan=4 Template:Party shading/National Union|Abraham Lincoln/ Andrew Johnson (NU) Green tickY
1865	style="background-color:Template:Republican Party (US)/meta/shading"|Isaac L. Allen (R)	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|John A. Elliott (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|Samuel J. Kirkwood (R)
1866	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|Benjamin F. Gue (R)	style="background-color:Template:Republican Party (US)/meta/shading"|Frederick E. Bissell (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|42R, 5D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|83R, 15D
1867	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|Ed Wright (R)	rowspan=5 style="background-color:Template:Republican Party (US)/meta/shading"|Henry O'Connor (R)	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|Samuel E. Rankin (R)	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|James Harlan (R)
1868	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Samuel Merrill (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|John Scott (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|42R, 7D	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|86R, 14D	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Ulysses S. Grant/ Schuyler Colfax (R) Green tickY
1869
1870	style="background-color:Template:Republican Party (US)/meta/shading"|Madison Miner Walden (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|43R, 7D	style="background-color:Template:Republican Party (US)/meta/shading"|James B. Howell (R)
1871	rowspan=3 style="background-color:Template:Republican Party (US)/meta/shading"|Henry C. Bulis (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|John Russell (R)	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|George G. Wright (R)
1872	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Cyrus C. Carpenter (R)	rowspan=5 style="background-color:Template:Republican Party (US)/meta/shading"|Marsena E. Cutts (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|42R, 8D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|78R, 22D	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Ulysses S. Grant/ Henry Wilson (R) Green tickY
1873	rowspan=7 style="background-color:Template:Republican Party (US)/meta/shading"|Josiah T. Young (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|William Christy (R)	rowspan=38 style="background-color:Template:Republican Party (US)/meta/shading"|William B. Allison (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|9R
1874	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|Joseph Dysart (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|34R, 10I, 6D	rowspan=2 Template:Party shading/Coalition|50R, 44I, 6DTemplate:Efn
1875	rowspan=7 style="background-color:Template:Republican Party (US)/meta/shading"|Buren R. Sherman (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|8R, 1D
1876	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|Samuel J. Kirkwood (R)Template:Efn	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|Joshua G. Newbold (R)	rowspan=3 style="background-color:Template:Republican Party (US)/meta/shading"|41R, 9D	rowspan=3 style="background-color:Template:Republican Party (US)/meta/shading"|70R, 30D	rowspan=5 style="background-color:Template:Republican Party (US)/meta/shading"|Rutherford B. Hayes/ William A. Wheeler (R) Green tickY
1877	rowspan=5 style="background-color:Template:Republican Party (US)/meta/shading"|John F. McJunkin (R)	rowspan=5 style="background-color:Template:Republican Party (US)/meta/shading"|George W. Bemis (R)	rowspan=5 style="background-color:Template:Republican Party (US)/meta/shading"|Samuel J. Kirkwood (R)	rowspan=3 style="background-color:Template:Republican Party (US)/meta/shading"|9R
	style="background-color:Template:Republican Party (US)/meta/shading"|Joshua G. Newbold (R)Template:Efn	vacant
1878	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|John H. Gear (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Frank T. Campbell (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|38R, 12D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|73R, 25D, 2GB
1879	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|John A. T. Hull (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|7R, 2GB
1880	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|41R, 7D, 2GB	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|82R, 14D, 4GB	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|James A. Garfield/ Chester A. Arthur (R) Green tickY
1881	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Smith McPherson (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|William V. Lucas (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Edwin H. Conger (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|James W. McDill (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|9R
1882	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Buren R. Sherman (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Orlando H. Manning (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|46R, 2D, 2GB	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|71R, 22D, 7GB
1883	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|John L. Brown (R)	rowspan=12 style="background-color:Template:Republican Party (US)/meta/shading"|James F. Wilson (R)	style="background-color:Template:Republican Party (US)/meta/shading"|8R, 2D, 1GB
1884	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|39R, 11D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|52R, 42D, 6GB	style="background-color:Template:Republican Party (US)/meta/shading"|6R, 4D, 1GB	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|James G. Blaine/ John A. Logan (R) Red XN
1885	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|Frank D. Jackson (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Andrew J. Baker (R)	style="background-color:Template:Republican Party (US)/meta/shading"|Jonathan W. Battell (R)	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|Voltaire P. Twombly (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|7R, 2D, 1G
1886	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|William Larrabee (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|John A. T. Hull (R)	style="background-color:Template:Republican Party (US)/meta/shading"|Charles Beardsley (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|31R, 19D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|60R, 39D, 1I
1887	style="background-color:Template:Republican Party (US)/meta/shading"|John L. Brown (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|8R, 1D, 1GB, 1IR
1888	Hames A. Lyons (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|35R, 15D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|64R, 33D, 3I	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Benjamin Harrison/ Levi P. Morton (R) Green tickY
1889		rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|John Young Stone (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|10R, 1D
1890		rowspan=4 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Horace Boies (D)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|Alfred N. Poyneer (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|28R, 20D, 1UL, 1I	rowspan=2 Template:Party shading/Tie |50D, 45R, 4I, 1ULTemplate:Efn
1891		rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|William M. McFarland (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Byron A. Beeson (R)	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|6D, 5R
1892		rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Samuel L. Bestow (D)	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|25D, 24R, 1PopTemplate:Efn	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|54R, 45D, 1I	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Benjamin Harrison/ Whitelaw Reid (R) Red XN
1893	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|Cornelius G. McCarthy (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|10R, 1D
1894	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|Frank D. Jackson (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|Warren S. Dungan (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|34R, 16D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|79R, 21D
1895	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|Milton Remley (R)	rowspan="6" style="background-color:Template:Republican Party (US)/meta/shading"|John Herriott (R)	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|John H. Gear (R)	rowspan=8 style="background-color:Template:Republican Party (US)/meta/shading"|11R
1896	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|Francis M. Drake (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|Matt Parrott (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|43R, 7D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|80R, 20D	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|William McKinley/ Garret Hobart (R) Green tickY
1897	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|George L. Dobson (R)
1898	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|L. M. Shaw (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|James C. Milliman (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|39R, 11D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|62R, 38D
1899	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Frank Merriam (R)
1900	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|42R, 8D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|81R, 19D	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|William McKinley/ Theodore Roosevelt (R) Green tickY
1901	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|William B. Martin (R)	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|Charles W. Mullan (R)	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|Gilbert S. Gilbertson (R)	rowspan=10 style="background-color:Template:Republican Party (US)/meta/shading"|Jonathan P. Dolliver (R)
1902	rowspan=7 style="background-color:Template:Republican Party (US)/meta/shading"|Albert B. Cummins (R)Template:Efn	rowspan=5 style="background-color:Template:Republican Party (US)/meta/shading"|John Herriott (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|39R, 11D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|84R, 16D
1903	rowspan=7 style="background-color:Template:Republican Party (US)/meta/shading"|Beryl F. Carroll (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|10R, 1D
1904	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|42R, 8D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|78R, 22D	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Theodore Roosevelt/ Charles W. Fairbanks (R) Green tickY
1905	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|11R
1906	style="background-color:Template:Republican Party (US)/meta/shading"|40R, 10DTemplate:Efn	rowspan=1 style="background-color:Template:Republican Party (US)/meta/shading"|82R, 18DTemplate:Efn
1907	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|Warren Garst (R)	rowspan=7 style="background-color:Template:Republican Party (US)/meta/shading"|William C. Hayward (R)	John F. Riggs	rowspan=7 style="background-color:Template:Republican Party (US)/meta/shading"|Willison W. Morrow (R)	rowspan=3 style="background-color:Template:Republican Party (US)/meta/shading"|36R, 14D	rowspan=3 style="background-color:Template:Republican Party (US)/meta/shading"|75R, 33D	rowspan=7 style="background-color:Template:Republican Party (US)/meta/shading"|10R, 1D
1908	rowspan=5 style="background-color:Template:Republican Party (US)/meta/shading"|William Howard Taft/ James S. Sherman (R) Green tickY
	style="background-color:Template:Republican Party (US)/meta/shading"|Warren Garst (R)Template:Efn	vacant
1909	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Beryl F. Carroll (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|George W. Clarke (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|Howard Webster Byers (R)	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|John L. Bleakly (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|34R, 16D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|80R, 28D	rowspan=12 style="background-color:Template:Republican Party (US)/meta/shading" |Albert B. Cummins (R)
1910	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|Lafayette Young (R)
1911	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|George Cosson (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|70R, 38D
1912	rowspan=9 style="background-color:Template:Republican Party (US)/meta/shading" |William S. Kenyon (R)	rowspan=4 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Woodrow Wilson/ Thomas R. Marshall (D) Green tickY
1913	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|George W. Clarke (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|William L. Harding (R)	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|William S. Allen (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|William C. Brown (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|33R, 17D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|66R, 42D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|8R, 3D
1914
1915	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|Frank S. Shaw (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|35R, 15D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|76R, 32D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|10R, 1D
1916	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Charles Evans Hughes/ Charles W. Fairbanks (R) Red XN
1917	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|William L. Harding (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Ernest Robert Moore (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|H. M. Havner (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Edwin H. Hoyt (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|40R, 10D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|94R, 14D	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading" |11R
1918
1919	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading" |Walter C. Ramsay (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|45R, 5D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|93R, 15D
1920	style="background-color:Template:Republican Party (US)/meta/shading" |Warren G. Harding/ Calvin Coolidge (R) Green tickY

1921–present

Year	Executive offices							General Assembly		United States Congress			Electoral votes
	Governor	Lt. Governor	Sec. of State	Attorney Gen.	Auditor	Treasurer	Sec. of Ag.	State Senate	State House	U.S. Senator (Class II)	U.S. Senator (Class III)	U.S. House
1921	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Nathan E. Kendall (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|John Hammill (R)	rowspan=7 style="background-color:Template:Republican Party (US)/meta/shading"|Walter C. Ramsay (R)	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|Ben Gibson (R)	rowspan=3 style="background-color:Template:Republican Party (US)/meta/shading"|Glenn C. Haynes (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|William J. Burbank (R)	no such office	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|48R, 2D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|101R, 6D, 1I	style="background-color:Template:Republican Party (US)/meta/shading"|William S. Kenyon (R)	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|Albert B. Cummins (R)	rowspan=10 style="background-color:Template:Republican Party (US)/meta/shading"|11R
1922	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Smith W. Brookhart (R)
1923	style="background-color:Template:Republican Party (US)/meta/shading"|Raymond W. Cassidy (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|46R, 4D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|91R, 16D, 1I
1924	style="background-color:Template:Republican Party (US)/meta/shading"|James E. Thomas (R)	style="background-color:Template:Republican Party (US)/meta/shading"|R. G. Clark (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Calvin Coolidge/ Charles G. Dawes (R) Green tickY
1925	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|John Hammill (R)	rowspan=3 style="background-color:Template:Republican Party (US)/meta/shading"|Clem F. Kimball (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|J. C. McClune (R)	rowspan=8 style="background-color:Template:Republican Party (US)/meta/shading"|Raymond E. Johnson (R)	rowspan=8 style="background-color:Template:Republican Party (US)/meta/shading"|Mark G. Thornburg (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|45R, 4D, 1I	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|101R, 7D
1926	rowspan=5 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Daniel F. Steck (D)
1927	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|John Fletcher (R)	rowspan=5 style="background-color:Template:Republican Party (US)/meta/shading"|J. W. Long (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|48R, 1D, 1ID	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|95R, 13D	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|Smith W. Brookhart (R)
1928	rowspan=5 style="background-color:Template:Republican Party (US)/meta/shading"|Arch W. McFarlane (R)	rowspan=3 style="background-color:Template:Republican Party (US)/meta/shading"|Edward McMurray Smith (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Herbert Hoover/ Charles Curtis (R) Green tickY
1929	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|48R, 2D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|96R, 12D
1930
1931	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|Dan W. Turner (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|G. C. Greenwalt (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|44R, 6D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|71R, 37D	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|L. J. Dickinson (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|10R, 1D
1932	style="background-color:Template:Republican Party (US)/meta/shading"|C. Fred Porter (R)	rowspan=8 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Franklin D. Roosevelt/ John Nance Garner (D) Green tickY
1933	rowspan=4 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Clyde L. Herring (D)	rowspan=4 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Nelson G. Kraschel (D)	rowspan=4 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Ola Babcock Miller (D)	rowspan=4 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Edward L. O'Connor (D)	rowspan=6 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Charles W. Storms (D)	rowspan=6 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Leo J. Wegman (D)	rowspan=4 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Ray Murray (D)	Template:Party shading/Tie|25D, 25RTemplate:Efn	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|76D, 32R	rowspan=4 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Louis Murphy (D)	rowspan=4 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|6D, 3R
1934	style="background-color:Template:Republican Party (US)/meta/shading"|26R, 24DTemplate:Efn
1935	style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|28D, 22R	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|58D, 50R
1936	style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|26D, 24RTemplate:Efn
1937	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Nelson G. Kraschel (D)	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|John K. Valentine (D)	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Robert E. O'Brien (D)	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|John H. Mitchell (D)	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Thomas L. Curran (D)	style="background-color:Template:Republican Party (US)/meta/shading"|28R, 22D	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|54D, 54RTemplate:Efn	rowspan=6 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Clyde L. Herring (D)	rowspan=8 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Guy Gillette (D)	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|5D, 4R
1938	style="background-color:Template:Republican Party (US)/meta/shading"|29R, 21DTemplate:Efn
1939	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|George A. Wilson (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Bourke B. Hickenlooper (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Earl G. Miller (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|Fred D. Everett (R)	rowspan=26 style="background-color:Template:Republican Party (US)/meta/shading"|C. B. (Chet) Akers (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Willis Bagley (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Mark G. Thornburg (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|38R, 12D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|89R, 19D	rowspan=3 style="background-color:Template:Republican Party (US)/meta/shading"|7R, 2D
1940	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Wendell Willkie/ Charles L. McNary (R) Red XN
1941	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|John M. Rankin (R)	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|45R, 5D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|87R, 21D
1942	style="background-color:Template:Republican Party (US)/meta/shading"|8R, 1D
1943	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|Bourke B. Hickenlooper (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|Robert D. Blue (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Wayne M. Ropes (R)	rowspan=8 style="background-color:Template:Republican Party (US)/meta/shading"|John M. Grimes (R)	rowspan=7 style="background-color:Template:Republican Party (US)/meta/shading"|Harry D. Linn (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|98R, 10D	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|George A. Wilson (R)	rowspan=14 style="background-color:Template:Republican Party (US)/meta/shading"|8R
1944	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Thomas E. Dewey/ John W. Bricker (R) Red XN
1945	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Robert D. Blue (R)	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|Kenneth A. Evans (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|91R, 17D	rowspan=24 style="background-color:Template:Republican Party (US)/meta/shading"|Bourke B. Hickenlooper (R)
1946
1947	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|Rolo H. Bergeson (R)	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|Robert L. Larson (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|44R, 6D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|98R, 10D
1948	rowspan=4 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Harry S. Truman/ Alben W. Barkley (D) Green tickY
1949	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|William S. Beardsley (R)Template:Efn	rowspan=16 style="background-color:Template:Republican Party (US)/meta/shading"|Melvin D. Synhorst (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|43R, 7D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|79R, 29D	rowspan=6 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Guy Gillette (D)
1950	rowspan=11 style="background-color:Template:Republican Party (US)/meta/shading"|Clyde Spry (R)
1951	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|William H. Nicholas (R)	rowspan=14 style="background-color:Template:Republican Party (US)/meta/shading"|M. L. Abrahamson (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|41R, 9D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|93R, 15D
1952	rowspan=8 style="background-color:Template:Republican Party (US)/meta/shading"|Dwight D. Eisenhower/ Richard Nixon (R) Green tickY
1953	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Leo Elthon (R)Template:Efn	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|Leo Hoegh (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|46R, 4D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|105R, 3D
1954
1955	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|Leo Hoegh (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|Dayton Countryman (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|44R, 6D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|90R, 18D	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|Thomas E. Martin (R)
1956
1957	rowspan=4 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Herschel C. Loveless (D)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|William H. Nicholas (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Norman A. Erbe (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|40R, 10D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|71R, 37D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|7R, 1D
1958
1959	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Edward J. McManus (D)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|33R, 17D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|58R, 50D	Template:Party shading/Tie|4D, 4R
1960	style="background-color:Template:Republican Party (US)/meta/shading"|5R, 3D	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Richard Nixon/ Henry Cabot Lodge Jr. (R) Red XN
1961	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|Norman A. Erbe (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|W. L. Mooty (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Evan Hultman (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|L. B. Liddy (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|35R, 15D	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|78R, 30D	rowspan=12 style="background-color:Template:Republican Party (US)/meta/shading"|Jack Miller (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|6R, 2D
1962
1963	rowspan=6 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Harold Hughes (D)Template:Efn	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|38R, 12D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|6R, 1D
1964	rowspan=4 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Lyndon B. Johnson/ Hubert Humphrey (D) Green tickY
1965	rowspan=4 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Robert D. Fulton (D)	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Gary L. Cameron (D)	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Lawrence F. Scalise (D)	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Lorne R. Worthington (D)	rowspan=4 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Paul Franzenburg (D)	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Kenneth E. Owen (D)	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|34D, 25R	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|101D, 23R	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|6D, 1R
1966
1967	rowspan=14 style="background-color:Template:Republican Party (US)/meta/shading"|Melvin D. Synhorst (R)Template:Efn	rowspan=12 style="background-color:Template:Republican Party (US)/meta/shading"|Richard C. Turner (R)	rowspan=12 style="background-color:Template:Republican Party (US)/meta/shading"|Lloyd R. Smith (R)	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|L. B. Liddy (R)	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|32D, 29R	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|89R, 35D	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|5R, 2D
1968	rowspan=8 style="background-color:Template:Republican Party (US)/meta/shading"|Richard Nixon/ Spiro Agnew (R) Green tickY
1969	rowspan=14 style="background-color:Template:Republican Party (US)/meta/shading"|Robert D. Ray (R)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Roger Jepsen (R)	rowspan=14 style="background-color:Template:Republican Party (US)/meta/shading"|Maurice E. Baringer (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|44R, 17D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|86R, 38D	rowspan=6 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Harold Hughes (D)
1970
1971	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|38R, 12D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|63R, 37D
1972
1973	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|Arthur Neu (R)	rowspan=14 style="background-color:Template:Republican Party (US)/meta/shading"|Robert H. Lounsberry (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|28R, 22D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|57R, 43D	rowspan=6 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Dick Clark (D)	rowspan=2 Template:Party shading/Tie|3D, 3R
1974
1975	rowspan=4 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|26D, 24R	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|61D, 39R	rowspan=6 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|John Culver (D)	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|5D, 1R
1976	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Gerald Ford/ Bob Dole (R) Red XN
1977	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|59D, 41R	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|4D, 2R
1978
1979	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Terry Branstad (R)	rowspan=12 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Tom Miller (D)	rowspan=24 style="background-color:Template:Republican Party (US)/meta/shading"|Richard D. Johnson (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|28R, 22D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|57R, 43D	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|Roger Jepsen (R)	rowspan=6 Template:Party shading/Tie|3D, 3R
1980	rowspan=8 style="background-color:Template:Republican Party (US)/meta/shading"|Ronald Reagan/ George H. W. Bush (R) Green tickY
1981	rowspan=6 style="background-color:Template:Republican Party (US)/meta/shading"|Mary Jane Odell (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|29R, 21D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|58R, 42D	rowspan=47 Template:Party shading/Republican/current|Chuck Grassley (R)
1982
1983	rowspan=16 style="background-color:Template:Republican Party (US)/meta/shading"|Terry Branstad (R)	rowspan=4 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Robert T. Anderson (D)	rowspan=42 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Michael Fitzgerald (D)	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|28D, 22R	rowspan=4 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|60D, 40R
1984
1985	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|29D, 21R	rowspan=31 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Tom Harkin (D)	rowspan=8 style="background-color:Template:Republican Party (US)/meta/shading"|4R, 2D
1986
1987	rowspan=4 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Jo Ann Zimmerman (D)	rowspan=8 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Elaine Baxter (D)	rowspan=12 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Dale M. Cochran (D)	rowspan=4 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|30D, 20R	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|58D, 42R
1988	rowspan=4 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Michael Dukakis/ Lloyd Bentsen (D) Red XN
1989	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|61D, 39R
1990
1991	rowspan=8 style="background-color:Template:Republican Party (US)/meta/shading"|Joy Corning (R)	rowspan=4 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Bonnie Campbell (D)	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|28D, 22R	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|53D, 47R
1992	rowspan=8 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Bill Clinton/ Al Gore (D) Green tickY
1993	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|26D, 24R	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|51R, 49D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|4R, 1D
1994
1995	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Paul Pate (R)	rowspan=30 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Tom Miller (D)	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|27D, 23R	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|64R, 36D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|5R
1996
1997	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|29R, 21D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|54R, 46D	rowspan=10 style="background-color:Template:Republican Party (US)/meta/shading"|4R, 1D
1998
1999	rowspan=8 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Tom Vilsack (D)	rowspan=8 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Sally Pederson (D)	rowspan=8 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Chet Culver (D)	rowspan=8 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Patty Judge (D)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|30R, 20D	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|56R, 44D
2000	rowspan=4 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Al Gore/ Joe Lieberman (D) Red XN
2001
2002
2003	rowspan=11 style="background-color:Template:Republican Party (US)/meta/shading"|David A. Vaudt (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|29R, 21D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|54R, 46D
2004	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|George W. Bush/ Dick Cheney (R) Green tickY
2005	rowspan=2 Template:Party shading/Tie|25D, 25R	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|51R, 49D
2006
2007	rowspan=4 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Chet Culver (D)	rowspan=4 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Patty Judge (D)	rowspan=4 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Michael Mauro (D)	rowspan=13 style="background-color:Template:Republican Party (US)/meta/shading"|Bill Northey (R)Template:Efn	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|30D, 20R	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|54D, 46R	rowspan=6 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|3D, 2R
2008	rowspan=9 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|Barack Obama/ Joe Biden (D) Green tickY
2009	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|32D, 18R	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|57D, 43R
2010
2011	rowspan=8 style="background-color:Template:Republican Party (US)/meta/shading"|Terry Branstad (R)Template:Efn	rowspan=8 style="background-color:Template:Republican Party (US)/meta/shading"|Kim Reynolds (R)	rowspan=5 style="background-color:Template:Republican Party (US)/meta/shading"|Matt Schultz (R)	rowspan=7 style="color:black;background-color:Template:Democratic Party (US)/meta/shading"|26D, 24R	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|60R, 40D
2012
2013	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|53R, 46D, 1 vac.	rowspan=3 Template:Party shading/Tie |2D, 2R
	rowspan=7 style="background-color:Template:Republican Party (US)/meta/shading"|Mary Mosiman (R)
2014	style="background-color:Template:Republican Party (US)/meta/shading"|53R, 47D
2015	rowspan=12 Template:Party shading/Republican/current |Paul Pate (R)	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading"|57R, 43D	rowspan=12 Template:Party shading/Republican/current |Joni Ernst (R)	rowspan=5 style="background-color:Template:Republican Party (US)/meta/shading"|3R, 1D
2016	rowspan=5 style="background-color:Template:Republican Party (US)/meta/shading"|Donald Trump/ Mike Pence (R) Green tickY
2017	rowspan=3 style="background-color:Template:Republican Party (US)/meta/shading"|29R, 20D, 1I	rowspan=3 style="background-color:Template:Republican Party (US)/meta/shading"|59R, 41D
	rowspan=9 Template:Party shading/Republican/current |Kim Reynolds (R)Template:Efn	rowspan=8 style="background-color:Template:Republican Party (US)/meta/shading" |Adam Gregg (R)
2018	rowspan=8 Template:Party shading/Republican/current |Mike Naig (R)
2019	rowspan=7 Template:Party shading/Democratic/current |Rob Sand (D)	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading" |32R, 18D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading" |53R, 47D	rowspan=2 style="color:black;background-color:Template:Democratic Party (US)/meta/shading" |3D, 1R
2020	rowspan=4 style="background-color:Template:Republican Party (US)/meta/shading"|Donald Trump/ Mike Pence (R) Red XN
2021	style="background-color:Template:Republican Party (US)/meta/shading" |59R, 41D	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading" |3R, 1D
2022	style="background-color:Template:Republican Party (US)/meta/shading" |60R, 40DTemplate:Efn
2023	rowspan=3 Template:Party shading/Republican/current |Brenna Bird (R)	rowspan=3 Template:Party shading/Republican/current |Roby Smith (R)	rowspan=3 Template:Party shading/Republican/current |34R, 16DTemplate:Efn	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading" |64R, 36D	rowspan=3 Template:Party shading/Republican/current |4R
2024	rowspan=2 style="background-color:Template:Republican Party (US)/meta/shading" |Donald Trump/ JD Vance (R) Green tickY
2025	Template:Party shading/Republican/current |Chris Cournoyer (R)	Template:Party shading/Republican/current |67R, 33D

Key to party colors and abbreviations for members of the U.S. Congress and other politicians or officials

Template:Party shading/Alaskan Independence | Alaskan Independence (AKIP) style="background-color:Template:Party color" | Know Nothing (KN) Template:Party shading/American Labor | American Labor (AL) Anti-Jacksonian (Anti-J) National Republican (NR) Anti-Administration (AA) Anti-Masonic (Anti-M) Conservative (Con) Template:Party shading/Covenant Party (Northern Mariana Islands) | Covenant (Cov)

style="color:black;background-color:Template:Democratic Party (US)/meta/shading" | Democratic (D) Template:Party shading/DFL | Democratic–Farmer–Labor (DFL) Template:Party shading/North Dakota Democratic-NPL | Democratic–NPL (D-NPL) Template:Party shading/Dixiecrat | Dixiecrat (Dix), States' Rights (SR) Democratic-Republican (DR) Farmer–Labor (FL) Federalist (F) Pro-Administration (PA)

Free Soil (FS) Fusion (Fus) Greenback (GB) style="background:Template:Party color" | Independence (IPM) Template:Party shading/Independent Democratic | Independent Democrat (ID) Template:Party shading/Independent Republican | Independent Republican (IR) style="background-color:Template:Party color" | Jacksonian (J) Template:Party shading/Liberal (New York) | Liberal (Lib)

style="background:Template:Party color" | Libertarian (L) Template:Party shading/National Union | National Union (NU) Nonpartisan League (NPL) style="background:Template:Party color" | Nullifier (N) Opposition Northern (O) Opposition Southern (O) style="background:Template:Party color" | Populist (Pop) Progressive (Prog)

Prohibition (Proh) style="background:Template:Party color" | Readjuster (Rea) style="background-color:Template:Republican Party (US)/meta/shading" | Republican (R) style="background:Template:Party color" | Silver (Sv) style="background:Template:Party color" | Silver Republican (SvR) Socialist (Soc) style="background:Template:Party color" | Union (U) Template:Party shading/Unconditional Unionist | Unconditional Union (UU)

Template:Party shading/Vermont Progressive| Vermont Progressive (VP) style="background-color:Template:Party color" | Whig (W) Template:Party shading/Independent | Independent (I) Template:Party shading/Nonpartisan | Nonpartisan (NP)

Further reading

• Meyer, Theodoric. "Two Iowa counties an hour apart show America’s growing political divide: Rural Decatur County has moved sharply red, while suburban Dallas County has shifted the other direction" Washington Post Jan 12, 2024, online

See also

• Governor of Iowa
• Elections in Iowa