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

YearExecutive officesGeneral AssemblyUnited States CongressElectoral votesGovernorLt. GovernorSec. of StateAttorney Gen.AuditorTreasurerState SenateState HouseU.S. Senator(Class II)U.S. Senator(Class III)U.S. House1846Ansel Briggs no such officeElisha Cutler Jr. no such officeJoseph T. Fales Morgan Reno 12D, 6W23W, 17D2D1847George Wallace Jones Augustus C. Dodge 1848Josiah H. Bonney Lewis Cass/William O. Butler 184911D, 8W28D, 11W1D, 1W1850George W. McCleary William Pattee Israel Kister 1851Stephen P. Hempstead 13D, 5W34D, 5W2D1852Martin L. Morris Franklin Pierce/William R. King 1853David C. Cloud 20D, 11W40D, 23W1D, 1W1854Andrew J. Stevens 1855James W. Grimes John Pattee 17D, 14W40W, 31DJames Harlan 1856Elijah Sells Samuel Allen Rice John C. Frémont/William L. Dayton 185723R, 12D44R, 26DJames Harlan 2R1858Ralph P. Lowe Oran Faville 22R, 14D42R, 30D1859Jonathan W. Battel John W. Jones James W. Grimes 1860Samuel J. Kirkwood Nicholas J. Rusch 23R, 20D49R, 37DAbraham Lincoln/Hannibal Hamlin 1861Charles C. Nourse 1862John R. Needham 32R, 14D60R, 34D1863James Wright William H. Holmes 6R1864William M. Stone Enoch W. Eastman 42R, 4D87R, 5DAbraham Lincoln/Andrew Johnson 1865Isaac L. Allen John A. Elliott Samuel J. Kirkwood 1866Benjamin F. Gue Frederick E. Bissell 42R, 5D83R, 15D1867Ed Wright Henry O'Connor Samuel E. Rankin James Harlan 1868Samuel Merrill John Scott 42R, 7D86R, 14DUlysses S. Grant/Schuyler Colfax 18691870Madison Miner Walden 43R, 7DJames B. Howell 1871Henry C. Bulis John Russell George G. Wright 1872Cyrus C. Carpenter Marsena E. Cutts 42R, 8D78R, 22DUlysses S. Grant/Henry Wilson 1873Josiah T. Young William Christy William B. Allison 9R1874Joseph Dysart 34R, 10I, 6D50R, 44I, 6D1875Buren R. Sherman 8R, 1D1876Samuel J. Kirkwood Joshua G. Newbold 41R, 9D70R, 30DRutherford B. Hayes/William A. Wheeler 1877John F. McJunkin George W. Bemis Samuel J. Kirkwood 9RJoshua G. Newbold vacant1878John H. Gear Frank T. Campbell 38R, 12D73R, 25D, 2GB1879John A. T. Hull 7R, 2GB188041R, 7D, 2GB82R, 14D, 4GBJames A. Garfield/Chester A. Arthur 1881Smith McPherson William V. Lucas Edwin H. Conger James W. McDill 9R1882Buren R. Sherman Orlando H. Manning 46R, 2D, 2GB71R, 22D, 7GB1883John L. Brown James F. Wilson 8R, 2D, 1GB188439R, 11D52R, 42D, 6GB6R, 4D, 1GBJames G. Blaine/John A. Logan 1885Frank D. Jackson Andrew J. Baker Jonathan W. Battell Voltaire P. Twombly 7R, 2D, 1G1886William Larrabee John A. T. Hull Charles Beardsley 31R, 19D60R, 39D, 1I1887John L. Brown 8R, 1D, 1GB, 1IR1888Hames A. Lyons 35R, 15D64R, 33D, 3IBenjamin Harrison/Levi P. Morton 1889John Young Stone 10R, 1D1890Horace Boies Alfred N. Poyneer 28R, 20D, 1, 1I50D, 45R, 4I, 11891William M. McFarland Byron A. Beeson 6D, 5R1892Samuel L. Bestow 25D, 24R, 1Pop54R, 45D, 1IBenjamin Harrison/Whitelaw Reid 1893Cornelius G. McCarthy 10R, 1D1894Frank D. Jackson Warren S. Dungan 34R, 16D79R, 21D1895Milton Remley John Herriott John H. Gear 11R1896Francis M. Drake Matt Parrott 43R, 7D80R, 20DWilliam McKinley/Garret Hobart 1897George L. Dobson 1898L. M. Shaw James C. Milliman 39R, 11D62R, 38D1899Frank Merriam 190042R, 8D81R, 19DWilliam McKinley/Theodore Roosevelt 1901William B. Martin Charles W. Mullan Gilbert S. Gilbertson Jonathan P. Dolliver 1902Albert B. Cummins John Herriott 39R, 11D84R, 16D1903Beryl F. Carroll 10R, 1D190442R, 8D78R, 22DTheodore Roosevelt/Charles W. Fairbanks 190511R190640R, 10D82R, 18D1907Warren Garst William C. Hayward John F. RiggsWillison W. Morrow 36R, 14D75R, 33D10R, 1D1908William Howard Taft/James S. Sherman Warren Garst vacant1909Beryl F. Carroll George W. Clarke Howard Webster Byers John L. Bleakly 34R, 16D80R, 28DAlbert B. Cummins 1910Lafayette Young 1911George Cosson 70R, 38D1912William S. Kenyon Woodrow Wilson/Thomas R. Marshall 1913George W. Clarke William L. Harding William S. Allen William C. Brown 33R, 17D66R, 42D8R, 3D19141915Frank S. Shaw 35R, 15D76R, 32D10R, 1D1916Charles Evans Hughes/Charles W. Fairbanks 1917William L. Harding Ernest Robert Moore H. M. Havner Edwin H. Hoyt 40R, 10D94R, 14D11R19181919Walter C. Ramsay 45R, 5D93R, 15D1920Warren G. Harding/Calvin Coolidge

1921–present

YearExecutive officesGeneral AssemblyUnited States CongressElectoralvotesGovernorLt. GovernorSec. of StateAttorney Gen.AuditorTreasurerSec. of Ag.StateSenateStateHouseU.S. Senator(Class II)U.S. Senator(Class III)U.S.House1921Nathan E. Kendall John Hammill Walter C. Ramsay Ben Gibson Glenn C. Haynes William J. Burbank no such office48R, 2D101R, 6D, 1IWilliam S. Kenyon Albert B. Cummins 11R1922Smith W. Brookhart 1923Raymond W. Cassidy 46R, 4D91R, 16D, 1I1924James E. Thomas R. G. Clark Calvin Coolidge/Charles G. Dawes 1925John Hammill Clem F. Kimball J. C. McClune Raymond E. Johnson Mark G. Thornburg 45R, 4D, 1I101R, 7D1926Daniel F. Steck 1927John Fletcher J. W. Long 48R, 1D, 1ID95R, 13DSmith W. Brookhart 1928Arch W. McFarlane Edward McMurray Smith Herbert Hoover/Charles Curtis 192948R, 2D96R, 12D19301931Dan W. Turner G. C. Greenwalt 44R, 6D71R, 37DL. J. Dickinson 10R, 1D1932C. Fred Porter Franklin D. Roosevelt/John Nance Garner 1933Clyde L. Herring Nelson G. Kraschel Ola Babcock Miller Edward L. O'Connor Charles W. Storms Leo J. Wegman Ray Murray 25D, 25R76D, 32RLouis Murphy 6D, 3R193426R, 24D193528D, 22R58D, 50R193626D, 24R1937Nelson G. Kraschel John K. Valentine Robert E. O'Brien John H. Mitchell Thomas L. Curran 28R, 22D54D, 54RClyde L. Herring Guy Gillette 5D, 4R193829R, 21D1939George A. Wilson Bourke B. Hickenlooper Earl G. Miller Fred D. Everett C. B. (Chet) Akers Willis Bagley Mark G. Thornburg 38R, 12D89R, 19D7R, 2D1940Wendell Willkie/Charles L. McNary 1941John M. Rankin 45R, 5D87R, 21D19428R, 1D1943Bourke B. Hickenlooper Robert D. Blue Wayne M. Ropes John M. Grimes Harry D. Linn 98R, 10DGeorge A. Wilson 8R1944Thomas E. Dewey/John W. Bricker 1945Robert D. Blue Kenneth A. Evans 91R, 17DBourke B. Hickenlooper 19461947Rolo H. Bergeson Robert L. Larson 44R, 6D98R, 10D1948Harry S. Truman/Alben W. Barkley 1949William S. Beardsley Melvin D. Synhorst 43R, 7D79R, 29DGuy Gillette 1950Clyde Spry 1951William H. Nicholas M. L. Abrahamson 41R, 9D93R, 15D1952Dwight D. Eisenhower/Richard Nixon 1953Leo Elthon Leo Hoegh 46R, 4D105R, 3D19541955Leo Hoegh Dayton Countryman 44R, 6D90R, 18DThomas E. Martin 19561957Herschel C. Loveless William H. Nicholas Norman A. Erbe 40R, 10D71R, 37D7R, 1D19581959Edward J. McManus 33R, 17D58R, 50D4D, 4R19605R, 3DRichard Nixon/Henry Cabot Lodge Jr. 1961Norman A. Erbe W. L. Mooty Evan Hultman L. B. Liddy 35R, 15D78R, 30DJack Miller 6R, 2D19621963Harold Hughes 38R, 12D6R, 1D1964Lyndon B. Johnson/Hubert Humphrey 1965Robert D. Fulton Gary L. Cameron Lawrence F. Scalise Lorne R. Worthington Paul Franzenburg Kenneth E. Owen 34D, 25R101D, 23R6D, 1R19661967Melvin D. Synhorst Richard C. Turner Lloyd R. Smith L. B. Liddy 32D, 29R89R, 35D5R, 2D1968Richard Nixon/Spiro Agnew 1969Robert D. Ray Roger Jepsen Maurice E. Baringer 44R, 17D86R, 38DHarold Hughes 1970197138R, 12D63R, 37D19721973Arthur Neu Robert H. Lounsberry 28R, 22D57R, 43DDick Clark 3D, 3R1974197526D, 24R61D, 39RJohn Culver 5D, 1R1976Gerald Ford/Bob Dole 197759D, 41R4D, 2R19781979Terry Branstad Tom Miller Richard D. Johnson 28R, 22D57R, 43DRoger Jepsen 3D, 3R1980Ronald Reagan/George H. W. Bush 1981Mary Jane Odell 29R, 21D58R, 42DChuck Grassley 19821983Terry Branstad Robert T. Anderson Michael Fitzgerald 28D, 22R60D, 40R1984198529D, 21RTom Harkin 4R, 2D19861987Jo Ann Zimmerman Elaine Baxter Dale M. Cochran 30D, 20R58D, 42R1988Michael Dukakis/Lloyd Bentsen 198961D, 39R19901991Joy Corning Bonnie Campbell 28D, 22R53D, 47R1992Bill Clinton/Al Gore 199326D, 24R51R, 49D4R, 1D19941995Paul Pate Tom Miller 27D, 23R64R, 36D5R1996199729R, 21D54R, 46D4R, 1D19981999Tom Vilsack Sally Pederson Chet Culver Patty Judge 30R, 20D56R, 44D2000Al Gore/Joe Lieberman 200120022003David A. Vaudt 29R, 21D54R, 46D2004George W. Bush/Dick Cheney 200525D, 25R51R, 49D20062007Chet Culver Patty Judge Michael Mauro Bill Northey 30D, 20R54D, 46R3D, 2R2008Barack Obama/Joe Biden 200932D, 18R57D, 43R20102011Terry Branstad Kim Reynolds Matt Schultz 26D, 24R60R, 40D2012201353R, 47D2D, 2RMary Mosiman 20142015Paul Pate 57R, 43DJoni Ernst 3R, 1D2016Donald Trump/Mike Pence 201729R, 20D, 1I59R, 41DKim Reynolds Adam Gregg 2018Mike Naig 2019Rob Sand 32R, 18D53R, 47D3D, 1R2020Donald Trump/Mike Pence 202159R, 41D3R, 1D202260R, 40D2023Brenna Bird Roby Smith 34R, 16D64R, 36D4R2024Donald Trump/JD Vance 2025Chris Cournoyer 67R, 33D202633R, 17D

References

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