Political party strength in Iowa explained

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

The table also indicates the historical party composition in the:

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 votes
class=unsortable Governor!class=unsortable Lt. Governor!class=unsortable Sec. of State!class=unsortable Attorney Gen.!class=unsortable Auditor!class=unsortable Treasurer!class=unsortable State Senate!class=unsortable State House!class=unsortable U.S. Senator
(Class II)
!
class=unsortable U.S. Senator
(Class III)
!
class=unsortable U.S. House
1846Ansel Briggs (D)no such officeElisha Cutler Jr. (D)no such officeJoseph T. Fales (D)Morgan Reno (D)12D, 6W23W, 17D2D
1847George Wallace Jones (D)Augustus C. Dodge (D)
1848Josiah H. Bonney (D)Lewis Cass/
William O. Butler (D)
184911D, 8W28D, 11W1D, 1W
1850George W. McCleary (D)William Pattee (D)Israel Kister (D)
1851Stephen P. Hempstead (D)13D, 5W34D, 5W2D
1852Martin L. Morris (D)Franklin Pierce/
William R. King (D)
1853David C. Cloud (D)20D, 11W40D, 23W1D, 1W
1854Andrew J. Stevens (W)
1855James W. Grimes (W)John Pattee (R)17D, 14W40W, 31DJames Harlan (FS)
1856Elijah Sells (R)Samuel Allen Rice (R)John C. Frémont/
William L. Dayton (R)
185723R, 12D44R, 26DJames Harlan (R)2R
1858Ralph P. Lowe (R)Oran Faville (R)22R, 14D42R, 30D
1859Jonathan W. Battel (R)John W. Jones (R)James W. Grimes (R)
1860Samuel J. Kirkwood (R)Nicholas J. Rusch (R)23R, 20D49R, 37DAbraham Lincoln/
Hannibal Hamlin (R)
1861Charles C. Nourse (R)
1862John R. Needham (R)32R, 14D60R, 34D
1863James Wright (R)William H. Holmes (R)6R
1864William M. Stone (R)Enoch W. Eastman (R)42R, 4D87R, 5DAbraham Lincoln/
Andrew Johnson (NU)
1865Isaac L. Allen (R)John A. Elliott (R)Samuel J. Kirkwood (R)
1866Benjamin F. Gue (R)Frederick E. Bissell (R)42R, 5D83R, 15D
1867Ed Wright (R)Henry O'Connor (R)Samuel E. Rankin (R)James Harlan (R)
1868Samuel Merrill (R)John Scott (R)42R, 7D86R, 14DUlysses S. Grant/
Schuyler Colfax (R)
1869
1870Madison Miner Walden (R)43R, 7DJames B. Howell (R)
1871Henry C. Bulis (R)John Russell (R)George G. Wright (R)
1872Cyrus C. Carpenter (R)Marsena E. Cutts (R)42R, 8D78R, 22DUlysses S. Grant/
Henry Wilson (R)
1873Josiah T. Young (R)William Christy (R)William B. Allison (R)9R
1874Joseph Dysart (R)34R, 10I, 6D50R, 44I, 6D
1875Buren R. Sherman (R)8R, 1D
1876Samuel J. Kirkwood (R)Joshua G. Newbold (R)41R, 9D70R, 30DRutherford B. Hayes/
William A. Wheeler (R)
1877John F. McJunkin (R)George W. Bemis (R)Samuel J. Kirkwood (R)9R
Joshua G. Newbold (R)vacant
1878John H. Gear (R)Frank T. Campbell (R)38R, 12D73R, 25D, 2GB
1879John A. T. Hull (R)7R, 2GB
188041R, 7D, 2GB82R, 14D, 4GBJames A. Garfield/
Chester A. Arthur (R)
1881Smith McPherson (R)William V. Lucas (R)Edwin H. Conger (R)James W. McDill (R)9R
1882Buren R. Sherman (R)Orlando H. Manning (R)46R, 2D, 2GB71R, 22D, 7GB
1883John L. Brown (R)James F. Wilson (R)8R, 2D, 1GB
188439R, 11D52R, 42D, 6GB6R, 4D, 1GBJames G. Blaine/
John A. Logan (R)
1885Frank D. Jackson (R)Andrew J. Baker (R)Jonathan W. Battell (R)Voltaire P. Twombly (R)7R, 2D, 1G
1886William Larrabee (R)John A. T. Hull (R)Charles Beardsley (R)31R, 19D60R, 39D, 1I
1887John L. Brown (R)8R, 1D, 1GB, 1IR
1888Hames A. Lyons (R)35R, 15D64R, 33D, 3IBenjamin Harrison/
Levi P. Morton (R)
1889John Young Stone (R)10R, 1D
1890Horace Boies (D)Alfred N. Poyneer (R)28R, 20D, 1, 1I50D, 45R, 4I, 1
1891William M. McFarland (R)Byron A. Beeson (R)6D, 5R
1892Samuel L. Bestow (D)25D, 24R, 1Pop54R, 45D, 1IBenjamin Harrison/
Whitelaw Reid (R)
1893Cornelius G. McCarthy (R)10R, 1D
1894Frank D. Jackson (R)Warren S. Dungan (R)34R, 16D79R, 21D
1895Milton Remley (R)John Herriott (R)John H. Gear (R)11R
1896Francis M. Drake (R)Matt Parrott (R)43R, 7D80R, 20DWilliam McKinley/
Garret Hobart (R)
1897George L. Dobson (R)
1898L. M. Shaw (R)James C. Milliman (R)39R, 11D62R, 38D
1899Frank Merriam (R)
190042R, 8D81R, 19DWilliam McKinley/
Theodore Roosevelt (R)
1901William B. Martin (R)Charles W. Mullan (R)Gilbert S. Gilbertson (R)Jonathan P. Dolliver (R)
1902Albert B. Cummins (R)John Herriott (R)39R, 11D84R, 16D
1903Beryl F. Carroll (R)10R, 1D
190442R, 8D78R, 22DTheodore Roosevelt/
Charles W. Fairbanks (R)
190511R
190640R, 10D82R, 18D
1907Warren Garst (R)William C. Hayward (R)John F. RiggsWillison W. Morrow (R)36R, 14D75R, 33D10R, 1D
1908William Howard Taft/
James S. Sherman (R)
Warren Garst (R)vacant
1909Beryl F. Carroll (R)George W. Clarke (R)Howard Webster Byers (R)John L. Bleakly (R)34R, 16D80R, 28DAlbert B. Cummins (R)
1910Lafayette Young (R)
1911George Cosson (R)70R, 38D
1912William S. Kenyon (R)Woodrow Wilson/
Thomas R. Marshall (D)
1913George W. Clarke (R)William L. Harding (R)William S. Allen (R)William C. Brown (R)33R, 17D66R, 42D8R, 3D
1914
1915Frank S. Shaw (R)35R, 15D76R, 32D10R, 1D
1916Charles Evans Hughes/
Charles W. Fairbanks (R)
1917William L. Harding (R)Ernest Robert Moore (R)H. M. Havner (R)Edwin H. Hoyt (R)40R, 10D94R, 14D11R
1918
1919Walter C. Ramsay (R)45R, 5D93R, 15D
1920Warren G. Harding/
Calvin Coolidge (R)

1921–present

YearExecutive officesGeneral AssemblyUnited States CongressElectoral
votes
class=unsortable Governor!class=unsortable Lt. Governor!class=unsortable Sec. of State!class=unsortable Attorney Gen.!class=unsortable Auditor!class=unsortable Treasurer!class=unsortable Sec. of Ag.!class=unsortable State
Senate
!
class=unsortable State
House
!
class=unsortable U.S. Senator
(Class II)
!
class=unsortable U.S. Senator
(Class III)
!
class=unsortable U.S.
House
1921Nathan E. Kendall (R)John Hammill (R)Walter C. Ramsay (R)Ben Gibson (R)Glenn C. Haynes (R)William J. Burbank (R)no such office48R, 2D101R, 6D, 1IWilliam S. Kenyon (R)Albert B. Cummins (R)11R
1922Smith W. Brookhart (R)
1923Raymond W. Cassidy (R)46R, 4D91R, 16D, 1I
1924James E. Thomas (R)R. G. Clark (R)Calvin Coolidge/
Charles G. Dawes (R)
1925John Hammill (R)Clem F. Kimball (R)J. C. McClune (R)Raymond E. Johnson (R)Mark G. Thornburg (R)45R, 4D, 1I101R, 7D
1926Daniel F. Steck (D)
1927John Fletcher (R)J. W. Long (R)48R, 1D, 1ID95R, 13DSmith W. Brookhart (R)
1928Arch W. McFarlane (R)Edward McMurray Smith (R)Herbert Hoover/
Charles Curtis (R)
192948R, 2D96R, 12D
1930
1931Dan W. Turner (R)G. C. Greenwalt (R)44R, 6D71R, 37DL. J. Dickinson (R)10R, 1D
1932C. Fred Porter (R)Franklin D. Roosevelt/
John Nance Garner (D)
1933Clyde L. Herring (D)Nelson G. Kraschel (D)Ola Babcock Miller (D)Edward L. O'Connor (D)Charles W. Storms (D)Leo J. Wegman (D)Ray Murray (D)25D, 25R76D, 32RLouis Murphy (D)6D, 3R
1934
193528D, 22R58D, 50R
1936
1937Nelson G. Kraschel (D)John K. Valentine (D)Robert E. O'Brien (D)John H. Mitchell (D)Thomas L. Curran (D)54D, 54RClyde L. Herring (D)Guy Gillette (D)5D, 4R
1938
1939George A. Wilson (R)Bourke B. Hickenlooper (R)Earl G. Miller (R)Fred D. Everett (R)C. B. (Chet) Akers (R)Willis Bagley (R)Mark G. Thornburg (R)38R, 12D89R, 19D7R, 2D
1940Wendell Willkie/
Charles L. McNary (R)
1941John M. Rankin (R)45R, 5D87R, 21D
19428R, 1D
1943Bourke B. Hickenlooper (R)Robert D. Blue (R)Wayne M. Ropes (R)John M. Grimes (R)Harry D. Linn (R)98R, 10DGeorge A. Wilson (R)8R
1944Thomas E. Dewey/
John W. Bricker (R)
1945Robert D. Blue (R)Kenneth A. Evans (R)91R, 17DBourke B. Hickenlooper (R)
1946
1947Rolo H. Bergeson (R)Robert L. Larson (R)44R, 6D98R, 10D
1948Harry S. Truman/
Alben W. Barkley (D)
1949William S. Beardsley (R)Melvin D. Synhorst (R)43R, 7D79R, 29DGuy Gillette (D)
1950Clyde Spry (R)
1951William H. Nicholas (R)M. L. Abrahamson (R)41R, 9D93R, 15D
1952Dwight D. Eisenhower/
Richard Nixon (R)
1953Leo Elthon (R)Leo Hoegh (R)46R, 4D105R, 3D
1954
1955Leo Hoegh (R)Dayton Countryman (R)44R, 6D90R, 18DThomas E. Martin (R)
1956
1957Herschel C. Loveless (D)William H. Nicholas (R)Norman A. Erbe (R)40R, 10D71R, 37D7R, 1D
1958
1959Edward J. McManus (D)33R, 17D58R, 50D4D, 4R
19605R, 3DRichard Nixon/
Henry Cabot Lodge Jr. (R)
1961Norman A. Erbe (R)W. L. Mooty (R)Evan Hultman (R)L. B. Liddy (R)35R, 15D78R, 30DJack Miller (R)6R, 2D
1962
1963Harold Hughes (D)38R, 12D6R, 1D
1964Lyndon B. Johnson/
Hubert Humphrey (D)
1965Robert D. Fulton (D)Gary L. Cameron (D)Lawrence F. Scalise (D)Lorne R. Worthington (D)Paul Franzenburg (D)Kenneth E. Owen (D)34D, 25R101D, 23R6D, 1R
1966
1967Melvin D. Synhorst (R)Richard C. Turner (R)Lloyd R. Smith (R)L. B. Liddy (R)32D, 29R89R, 35D5R, 2D
1968Richard Nixon/
Spiro Agnew (R)
1969Robert D. Ray (R)Roger Jepsen (R)Maurice E. Baringer (R)44R, 17D86R, 38DHarold Hughes (D)
1970
197138R, 12D63R, 37D
1972
1973Arthur Neu (R)Robert H. Lounsberry (R)28R, 22D57R, 43DDick Clark (D)3D, 3R
1974
197526D, 24R61D, 39RJohn Culver (D)5D, 1R
1976Gerald Ford/
Bob Dole (R)
197759D, 41R4D, 2R
1978
1979Terry Branstad (R)Tom Miller (D)Richard D. Johnson (R)28R, 22D57R, 43DRoger Jepsen (R)3D, 3R
1980Ronald Reagan/
George H. W. Bush (R)
1981Mary Jane Odell (R)29R, 21D58R, 42DChuck Grassley (R)
1982
1983Terry Branstad (R)Robert T. Anderson (D)Michael Fitzgerald (D)28D, 22R60D, 40R
1984
198529D, 21RTom Harkin (D)4R, 2D
1986
1987Jo Ann Zimmerman (D)Elaine Baxter (D)Dale M. Cochran (D)30D, 20R58D, 42R
1988Michael Dukakis/
Lloyd Bentsen (D)
198961D, 39R
1990
1991Joy Corning (R)Bonnie Campbell (D)28D, 22R53D, 47R
1992Bill Clinton/
Al Gore (D)
199326D, 24R51R, 49D4R, 1D
1994
1995Paul Pate (R)Tom Miller (D)27D, 23R64R, 36D5R
1996
199729R, 21D54R, 46D4R, 1D
1998
1999Tom Vilsack (D)Sally Pederson (D)Chet Culver (D)Patty Judge (D)30R, 20D56R, 44D
2000Al Gore/
Joe Lieberman (D)
2001
2002
2003David A. Vaudt (R)29R, 21D54R, 46D
2004George W. Bush/
Dick Cheney (R)
200525D, 25R51R, 49D
2006
2007Chet Culver (D)Patty Judge (D)Michael Mauro (D)Bill Northey (R)30D, 20R54D, 46R3D, 2R
2008Barack Obama/
Joe Biden (D)
200932D, 18R57D, 43R
2010
2011Terry Branstad (R)Kim Reynolds (R)Matt Schultz (R)26D, 24R60R, 40D
2012
201353R, 46D, 1 vac.2D, 2R
Mary Mosiman (R)
201453R, 47D
2015Paul Pate (R)57R, 43DJoni Ernst (R)3R, 1D
2016Donald Trump/
Mike Pence (R)
201729R, 20D, 1I59R, 41D
Kim Reynolds (R)Adam Gregg (R)
2018Mike Naig (R)
2019Rob Sand (D)32R, 18D53R, 47D3D, 1R
2020Donald Trump/
Mike Pence (R)
202159R, 41D3R, 1D
202260R, 40D
2023Brenna Bird (R)Roby Smith (R)34R, 16D64R, 36D4R
2024

Further reading

See also