The following tables indicate the historic party affiliation of elected officials in the U.S. state of Wisconsin, including: Governor, Lieutenant Governor, Secretary of State, Attorney General, State Treasurer, Superintendent of Public Instruction. The tables also indicate the historical party composition in the State Senate, State Assembly, the State delegation to the United States Senate, and the State delegation to the United States House of Representatives. For years in which a United States presidential election was held, the tables indicate which party's nominees received the state's electoral votes.
The parties are labeled as follows: Democratic (D), Independent (I), Nonpartisan (NP), Progressive (P), Republican (R), Whig (W), People's Party (PP), Union Labor (UL), Fusion (F), Independent Democrat (ID), Independent Republican (IR), and Independent (I), and a tie or coalition within a group of elected officials.
1848 to 1899
| Year |
Executive offices |
State Legislature |
United States Congress |
Electoral College votes |
| Governor |
Lieutenant Governor |
Secretary of State |
Attorney General |
Treasurer |
Supt. of Pub. Inst. |
State Senate |
State Assembly |
U.S. Senator (Class I) |
U.S. Senator (Class III) |
U.S. House |
| 1848 |
Nelson Dewey (D) |
John Edwin Holmes (D) |
Thomas McHugh (D) |
James S. Brown (D) |
Jairus C. Fairchild (D) |
Eleazer Root (W) |
12D, 4W, 3FS |
35D, 16W, 15FS |
Henry Dodge (D) |
Isaac P. Walker (D) |
2D |
Cass / Butler (D)  |
| 1849 |
1FS, 1W, 1D |
| 1850 |
Samuel W. Beall (D) |
William A. Barstow (D) |
S. Park Coon (D) |
12D, 4W, 2FS, 1? |
41D, 17W, 8FS |
| 1851 |
14D, 3W, 2FS |
46D, 11W, 9FS |
2D, 1FS |
| 1852 |
Leonard J. Farwell (W) |
Timothy Burns (D) |
Charles D. Robinson (D) |
Experience Estabrook (D) |
Edward H. Janssen (D) |
Azel P. Ladd |
13D, 5W, 1FS |
31W, 28D, 6FS, 1vac |
Pierce/King (D)  Y |
| 1853 |
vacant |
18D, 7W |
51D, 22W, 7FD, 2I |
3D |
| 1854 |
William A. Barstow (D) |
James T. Lewis (R) |
Alexander T. Gray (D) |
George Baldwin Smith (D) |
Hiram A. Wright (D) |
20D, 5W |
50D, 25W, 8FS |
| 1855 |
13D, 12R |
44R, 33D, 5I, 1? |
Charles Durkee (R) |
2R, 1D |
| 1856 |
Arthur MacArthur, Sr. (D) |
David W. Jones (D) |
William R. Smith (D) |
Charles Kuehn (D) |
A. Constantine Barry (D) |
13R, 12D |
45D, 35R, 1I, 2? |
Fremont/Dayton (R) |
| Arthur MacArthur, Sr. (D) |
vacant |
| Coles Bashford (R) |
Arthur MacArthur, Sr. (D) |
| 1857 |
19R, 11D |
62R, 33D, 2I |
James Rood Doolittle (R) |
3R |
| 1858 |
Alexander Randall (R) |
Erasmus D. Campbell (D) |
Gabriel Bouck (D) |
Samuel D. Hastings (R) |
Lyman Draper (D) |
18R, 12D |
49R, 48D |
| 1859 |
16R, 14D |
55R, 42D |
2R, 1D |
| 1860 |
Butler G. Noble (R) |
Louis P. Harvey (R) |
James Henry Howe (R) |
Josiah Little Pickard |
17R, 13D |
58R, 39D |
Lincoln/Hamlin (R) Y |
| 1861 |
22R, 8D |
70R, 27D |
Timothy O. Howe (R) |
3R |
| 1862 |
Louis P. Harvey (R) |
Edward Salomon (R) |
James T. Lewis (R) |
Winfield Smith (R) |
22R, 11D |
44R, 33D, 23U |
| Edward Salomon (R) |
vacant |
| 1863 |
17R, 16D |
48R, 44D, 8U |
3D, 3R |
| 1864 |
James T. Lewis (R) |
Wyman Spooner (R) |
Lucius Fairchild (R) |
John G. McMynn |
22R, 11D |
75R, 25D |
Lincoln/Johnson (R) Y |
| 1865 |
20R, 13D |
67R, 33D |
5R, 1D |
| 1866 |
Lucius Fairchild (R) |
Thomas Allen (R) |
Charles R. Gill (R) |
William E. Smith (R) |
23R, 9D, 1I |
59R, 32D, 9I |
| 1867 |
22R, 11D |
74R, 24D, 1I, 1? |
| 1868 |
Alexander J. Craig |
18R, 15D |
59R, 41D |
Grant / Colfax (R) Y |
| 1869 |
19R, 14D |
68R, 32D |
Matthew H. Carpenter |
| 1870 |
Thaddeus C. Pound (R) |
Llywelyn Breese (R) |
Stephen Steele Barlow (R) |
Henry Baetz (R) |
Samuel Fallows (R) |
19R, 11D, 3I |
55R, 38D, 7I |
| 1871 |
19R, 14D |
57R, 41D, 2I |
4R, 2D |
| 1872 |
Cadwallader C. Washburn (R) |
Milton H. Pettit (R) |
23R, 9D, 1I |
58R, 38D, 4I |
Grant/Wilson (R) Y |
| 1873 |
vacant |
17R, 16D |
60D, 40R |
6R, 2D |
| 1874 |
William Robert Taylor (D) |
Charles D. Parker (D) |
Peter Doyle (D) |
A. Scott Sloan (R) |
Ferdinand Kuehn (D) |
Edward Searing (R) |
17R, 15D, 1I |
64R, 35D, 4I |
| 1875 |
60D, 40R |
Angus Cameron (R) |
5R, 3D |
| 1876 |
Harrison Ludington (R) |
21R, 12D |
49D, 47R, 4I |
Hayes/ Wheeler (R) Y |
| 1877 |
48R, 40D, 7G, 4I, 1S |
| 1878 |
William E. Smith (R) |
James M. Bingham (R) |
Hans Warner (R) |
Alexander Wilson (R) |
Richard Guenther (R) |
William Clarke Whitford (D/Lib.R.) |
24R, 9D |
45R, 41D, 13G, 1S |
| 1879 |
66R, 25D, 9G |
Matthew H. Carpenter (R) |
| 1880 |
25R, 8D |
70R, 29D, 1G |
Garfield/ Arthur (R) Y |
| 1881 |
24R, 9D |
78R, 22D |
Philetus Sawyer (R) |
Angus Cameron (R) |
| 1882 |
Jeremiah McLain Rusk (R) |
Sam Fifield (R) |
Ernst Timme (R) |
Leander F. Frisby (R) |
Edward C. McFetridge (R) |
Robert Graham (R, D, Proh.) |
23R, 10D |
64R, 34D, 2I |
| 1883 |
18R, 15D |
63R, 37D |
6D, 3R |
| 1884 |
Blaine/ Logan (R) |
| 1885 |
20R, 13D |
61R, 39D |
John Coit Spooner (R) |
7R, 2D |
| 1886 |
| 1887 |
George W. Ryland (R) |
Charles E. Estabrook (R) |
Henry B. Harshaw (R) |
Jesse B. Thayer (R) |
25R, 6D, 1PP, 1I |
57R, 30D, 6PP, 4ID, 3I |
7R, 1D, 1 Lab. |
| 1888 |
Harrison/Morton (R) Y |
| 1889 |
William D. Hoard (R) |
24R, 6D, 2UL, 1I |
71R, 29D |
7R, 2D |
| 1890 |
| 1891 |
George Wilbur Peck (D) |
Charles Jonas (D) |
Thomas Cunningham (D) |
James L. O'Connor (D) |
John Hunner (D) |
Oliver Elwin Wells (D) |
19D, 14R |
66D, 33R, 1UL |
William Freeman Vilas (D) |
8D, 1R |
| 1892 |
Cleveland / Stevenson (D) Y |
| 1893 |
26D, 7R |
56D, 44R |
John L. Mitchell (D) |
6D, 4R |
| 1894 |
| 1895 |
William H. Upham (R) |
Emil Baensch (R) |
Henry Casson (R) |
William H. Mylrea (R) |
Sewell A. Peterson (R) |
John Q. Emery (R) |
20R, 13D |
81R, 19D |
10R |
| 1896 |
McKinley/Hobart (R) Y |
| 1897 |
Edward Scofield (R) |
29R, 4D |
91R, 8D, 1Fus |
John Coit Spooner (R) |
| 1898 |
| 1899 |
Jesse Stone (R) |
William Froehlich (R) |
Emmett R. Hicks (R) |
James O. Davidson (R) |
Lorenzo D. Harvey (R) |
31R, 2D |
81R, 19D |
Joseph V. Quarles (R) |
| Year |
Governor |
Lieutenant Governor |
Secretary of State |
Attorney General |
Treasurer |
Supt. of Pub. Inst. |
State Senate |
State Assembly |
U.S. Senator (Class I) |
U.S. Senator (Class III) |
U.S. House |
Electoral College votes |
| Executive offices |
State Legislature |
United States Congress |
1900 to 1949
| Year |
Executive offices |
State Legislature |
United States Congress |
Electoral College votes |
| Governor |
Lieutenant Governor |
Secretary of State |
Attorney General |
Treasurer |
Supt. of Pub. Inst. |
State Senate |
State Assembly |
U.S. Senator (Class I) |
U.S. Senator (Class III) |
U.S. House |
| 1900 |
Edward Scofield (R) |
Jesse Stone (R) |
William Froehlich (R) |
Emmett R. Hicks (R) |
James O. Davidson (R) |
Lorenzo D. Harvey (R) |
31R, 2D |
81R, 19D |
Joseph V. Quarles (R) |
John Coit Spooner (R) |
10R |
McKinley/Roosevelt (R) Y |
| 1901 |
Robert M. La Follette, Sr. (R) |
82R, 18D |
| 1902 |
James O. Davidson (R) |
| 1903 |
Walter Houser (R) |
Lafayette M. Sturdevant (R) |
John J. Kempf (R) |
Charles P. Cary (R) |
30R, 3D |
75R, 25D |
10R, 1D |
| 1904 |
Thomas M. Purtell (R) |
Roosevelt/Fairbanks (R) Y |
| 1905 |
John J. Kempf (R) |
Charles P. Cary (NP/R) |
28R, 4D, 1SD |
85R, 11D, 4SD |
10R, 1D |
| 1906 |
James O. Davidson (R) |
vacant |
Robert M. La Follette, Sr. (R) |
| 1907 |
William D. Connor (R) |
James A. Frear (R) |
Frank L. Gilbert (R) |
Andrew H. Dahl (R) |
27R, 5D, 1SD |
76R, 19D, 5SD |
Isaac Stephenson (R) |
9R, 2D |
| 1908 |
Taft/Sherman (R) Y |
| 1909 |
John Strange (R) |
28R, 4D, 1SD |
80R, 17D, 3SD |
10R, 1D |
| 1910 |
| 1911 |
Francis E. McGovern (R) |
Thomas Morris (R) |
Levi H. Bancroft (R) |
27R, 4D, 2SD |
59R, 29D, 12SD |
8R, 2D, 1S |
| 1912 |
Wilson/Marshall (D) Y |
| 1913 |
John Donald (R) |
Walter C. Owen (R) |
Henry Johnson (R) |
23R, 9D, 1SD |
57R, 37D, 6SD |
8R, 3D |
| 1914 |
| 1915 |
Emanuel L. Philipp (R) |
Edward F. Dithmar (R) |
21R, 11D, 1SD |
63R, 29D, 8SD |
Paul O. Husting |
| 1916 |
Hughes/Fairbanks (R) |
| 1917 |
Merlin Hull (R) |
24R, 6D, 3S |
79R, 14D, 7S |
11R |
| 1918 |
Spencer Haven (R) |
Irvine Lenroot (R) |
| 1919 |
John J. Blaine (R) |
27R, 4S, 2D |
79R, 16S, 5D |
10R, 1S |
| 1920 |
Harding/Coolidge (R) Y |
| 1921 |
John J. Blaine (R) |
George Comings (R) |
Elmer Hall (R) |
William J. Morgan (R) |
John Callahan (NP) |
92R, 6S, 2D |
11R |
| 1922 |
| 1923 |
Fred R. Zimmerman (R) |
Herman Ekern (R) |
Solomon Levitan (R) |
30R, 3S |
89R, 10S, 1D |
10R, 1S |
| 1924 |
La Follette/Wheeler (P) |
| 1925 |
Henry A. Huber (R) |
29R, 4S |
91R, 8S, 1D |
Robert M. La Follette, Jr. (R) |
| 1926 |
| 1927 |
Fred R. Zimmerman (R) |
Theodore Dammann (R) |
John W. Reynolds, Sr. (R) |
31R, 2S |
89R, 8S, 3D |
John J. Blaine (R) |
| 1928 |
Hoover/Curtis (R) Y |
| 1929 |
Walter J. Kohler, Sr. |
90R, 6D, 3S, 1I |
11R |
| 1930 |
| 1931 |
Philip La Follette (R) |
30R, 2S, 1D |
89R, 9S, 2D |
10R, 1D |
| 1932 |
Roosevelt/Garner (D) Y |
| 1933 |
Albert G. Schmedeman (D) |
Thomas J. O'Malley (D) |
James E. Finnegan (D) |
Robert Kirkland Henry (D) |
23R, 9D, 1P |
59D, 24P, 13R, 3S, 1IR |
F. Ryan Duffy (D) |
5D, 5R |
| 1934 |
| 1935 |
Philip La Follette (P) |
Theodore Dammann (P) |
14P, 13D, 6R |
45P, 35D, 17R, 3S |
Robert M. La Follette, Jr. (P) |
7P, 3D |
| 1936 |
Henry A. Gunderson (P) |
| 1937 |
Herman L. Ekern (P) |
Orland Steen Loomis (P) |
Solomon Levitan (P) |
16P, 9D, 8R |
46P, 31D, 21R, 2S |
| 1938 |
| 1939 |
Julius P. Heil (R) |
Walter Samuel Goodland (R) |
Fred R. Zimmerman (R) |
John E. Martin |
John M. Smith |
16R, 11P, 6D |
53R, 32P, 15D |
Alexander Wiley (R) |
8R, 2P |
| 1940 |
Roosevelt/Wallace (D) Y |
| 1941 |
23R, 6P, 4D |
60R, 25P, 15D |
6R, 3P, 1D |
| 1942 |
| 1943 |
Orland S. Loomis (P) |
73R, 14D, 13P |
5R, 3D, 2P |
| Walter Samuel Goodland (R) |
vacant |
| 1944 |
Dewey/Bricker (R) |
| 1945 |
Oscar Rennebohm (R) |
22R, 6D, 5P |
75R, 19D, 5P |
7R, 2D, 1P |
| 1946 |
| 1947 |
Oscar Rennebohm (R) |
vacant |
John L. Sonderegger |
27R, 5D, 1P |
88R, 12D |
Joseph R. McCarthy (R) |
10R |
| 1948 |
| Grover L. Broadfoot (R) |
Clyde M. Johnston |
Truman/Barkley (D) Y |
| 1949 |
George M. Smith (R) |
Thomas E. Fairchild (D) |
Warren R. Smith (R) |
George Earl Watson (NP) |
28R, 5D |
74R, 26D |
8R, 2D |
| Year |
Governor |
Lieutenant Governor |
Secretary of State |
Attorney General |
Treasurer |
Supt. of Pub. Inst. |
State Senate |
State Assembly |
U.S. Senator (Class I) |
U.S. Senator (Class III) |
U.S. House |
Electoral College votes |
| Executive offices |
State Legislature |
United States Congress |
1950 to 1999
| Year |
Executive offices |
State Legislature |
United States Congress |
Electoral College votes |
| Governor |
Lieutenant Governor |
Secretary of State |
Attorney General |
Treasurer |
State Senate |
State Assembly |
U.S. Senator (Class I) |
U.S. Senator (Class III) |
U.S. House |
| 1950 |
Oscar Rennebohm (R) |
George M. Smith (R) |
Fred R. Zimmerman (R) |
Thomas E. Fairchild (D) |
Warren R. Smith (R) |
28R, 5D |
74R, 26D |
Joseph R. McCarthy (R) |
Alexander Wiley (R) |
8R, 2D |
Truman/Barkley (D) |
| 1951 |
Walter J. Kohler, Jr. (R) |
Vernon W. Thomson (R) |
26R, 7D |
76R, 24D |
9R, 1D |
| 1952 |
Eisenhower/Nixon (R) Y |
| 1953 |
75R, 25D |
| 1954 |
Louis Allis (R) |
| 1955 |
Warren P. Knowles (R) |
Glenn M. Wise (R) |
25R, 8D |
64R, 36D |
7R, 3D |
| 1956 |
| 1957 |
Vernon W. Thomson (R) |
Robert C. Zimmerman (R) |
Stewart G. Honeck (R) |
23R, 10D |
67R, 33D |
William Proxmire (D) |
| 1958 |
Dena A. Smith(R) |
| 1959 |
Gaylord A. Nelson (D) |
Philleo Nash (D) |
John W. Reynolds, Jr. (D) |
Eugene M. Lamb (D) |
20R, 13D |
55D, 45R |
5D, 5R |
| 1960 |
Nixon/Lodge (R) |
| 1961 |
Warren P. Knowles (R) |
Dena A. Smith (R) |
55R, 45D |
6R, 4D |
| 1962 |
| 1963 |
John W. Reynolds (D) |
Jack B. Olson (R) |
George Thompson (R) |
22R, 11D |
53R, 47D |
Gaylord A. Nelson (D) |
| 1964 |
Johnson/Humphrey (D) Y |
| 1965 |
Warren P. Knowles (R) |
Patrick J. Lucey (D) |
Bronson La Follette (D) |
20R, 13D |
52D, 48R |
5D, 5R |
| 1966 |
| 1967 |
21R, 12D |
53R, 47D |
7R, 3D |
| 1968 |
Jack B. Olson (R) |
Harold W. Clemens (R) |
Nixon/Agnew (R) Y |
| 1969 |
Robert W. Warren (R) |
23R, 10D |
52R, 48D |
6R, 4D |
| 1970 |
| 1971 |
Patrick J. Lucey (D) |
Martin J. Schreiber (D) |
Charles P. Smith (D) |
20R, 13D |
67D, 33R |
5D, 5R |
| 1972 |
| 1973 |
Victor A. Miller (D) |
18R, 15D |
62D, 37R |
5D, 4R |
| 1974 |
Bronson La Follette (D) |
| 1975 |
Doug La Follette (D) |
19D, 14R |
63D, 36R |
7D, 2R |
| 1976 |
Carter/Mondale (D) Y |
| 1977 |
Martin J. Schreiber (D) |
vacant |
23D, 10R |
66D, 33R |
| 1978 |
| 1979 |
Lee S. Dreyfus (R) |
Russell A. Olson (R) |
Vel Phillips (D) |
21D, 12R |
60D, 39R |
6D, 3R |
| 1980 |
Reagan/Bush (R) Y |
| 1981 |
20D, 13R |
59D, 40R |
Robert W. Kasten, Jr. (R) |
5D, 4R |
| 1982 |
| 1983 |
Anthony Earl (D) |
James Flynn (D) |
Doug La Follette (D) |
22D, 11R |
| 1984 |
| 1985 |
19D, 14R |
52D, 47R |
| 1986 |
| 1987 |
Tommy Thompson (R) |
Scott McCallum (R) |
Don Hanaway (R) |
54D, 45R |
| 1988 |
Dukakis/Bentsen (D) |
| 1989 |
20D, 13R |
56D, 43R |
Herb Kohl (D) |
| 1990 |
| 1991 |
Jim Doyle (D) |
Cathy Zeuske (R) |
19D, 14R |
58D, 41R |
5R, 4D |
| 1992 |
Clinton/Gore (D) Y |
| 1993 |
18D, 15R |
52D, 47R |
Russ Feingold (D) |
| 17R, 16D |
| 1994 |
| 1995 |
Jack Voight (R) |
51R, 48D |
6R, 3D |
| 1996 |
| 17D, 16R |
| 1997 |
52R, 47D |
5D, 4R |
| 1998 |
| 17R, 16D |
| 1999 |
17D, 16R |
55R, 44D |
| Year |
Governor |
Lieutenant Governor |
Secretary of State |
Attorney General |
Treasurer |
State Senate |
State Assembly |
U.S. Senator (Class I) |
U.S. Senator (Class III) |
U.S. House |
Electoral College votes |
| Executive offices |
State Legislature |
United States Congress |
2000-present
| Year |
Executive offices |
State Legislature |
United States Congress |
Electoral College votes |
| Governor |
Lieutenant Governor |
Secretary of State |
Attorney General |
Treasurer |
State Senate |
State Assembly |
U.S. Senator (Class I) |
U.S. Senator (Class III) |
U.S. House |
| 2000 |
Tommy Thompson (R) |
Scott McCallum (R) |
Doug La Follette (D) |
Jim Doyle (D) |
Jack Voight (R) |
17D, 16R |
55R, 44D |
Herb Kohl (D) |
Russ Feingold (D) |
5D, 4R |
Gore/Lieberman (D) |
| 2001 |
Scott McCallum (R) |
Margaret Farrow (R) |
18D, 15R |
56R, 43D |
| 2002 |
| 2003 |
Jim Doyle (D) |
Barbara Lawton (D) |
Peggy Lautenschlager (D) |
18R, 15D |
58R, 41D |
4R, 4D |
| 2004 |
Kerry/Edwards (D) |
| 2005 |
19R, 14D |
60R, 39D |
| 2006 |
| 2007 |
J. B. Van Hollen (R) |
Dawn Marie Sass (D) |
18D, 15R |
52R, 47D |
5D, 3R |
| 2008 |
Obama/Biden (D) Y |
| 2009 |
52D, 46R, 1I |
| 2010 |
| 2011 |
Scott Walker (R) |
Rebecca Kleefisch (R) |
Kurt W. Schuller (R) |
19R, 14D |
59R, 39D, 1I |
Ron Johnson (R) |
5R, 3D |
| 17R, 16D |
| 2012 |
17D, 16R |
| 2013 |
18R, 15D |
60R, 39D |
Tammy Baldwin (D) |
| 2014 |
| 2015 |
Brad Schimel (R) |
Matt Adamczyk (R) |
19R, 14D |
63R, 36D |
| 2016 |
Trump/Pence (R) Y |
| 2017 |
20R, 13D |
64R, 35D |
| Year |
Governor |
Lieutenant Governor |
Secretary of State |
Attorney General |
Treasurer |
State Senate |
State Assembly |
U.S. Senator (Class I) |
U.S. Senator (Class III) |
U.S. House |
Electoral College votes |
| Executive offices |
State Legislature |
United States Congress |
