List of United States Senators from Wisconsin

Wisconsin was admitted to the Union on May 29, 1848.

Class 1

#	Senator	Party	Years	Term	Electoral history
1	Henry Dodge	Democratic	June 8, 1848 – March 4, 1857	1	Elected in 1848
				2	Re-elected in 1851 Retired
2	James R. Doolittle	Republican	March 4, 1857 – March 4, 1869	3	Elected in 1857
				4	Re-elected in 1863 [Data unknown/missing. You can help!]
3	Matthew H. Carpenter	Republican	March 4, 1869 – March 4, 1875	5	Elected in 1869 Lost re-election
4	Angus Cameron	Republican	March 4, 1875 – March 4, 1881	6	Elected in 1875 Retired
5	Philetus Sawyer	Republican	March 4, 1881 – March 4, 1893	7	Elected in 1881
				8	Re-elected in 1887 Retired
6	John L. Mitchell	Democratic	March 4, 1893 – March 4, 1899	9	Elected in 1893 Retired
7	Joseph V. Quarles	Republican	March 4, 1899 – March 4, 1905	10	Elected in 1899 Retired
Vacant			March 4, 1905 – January 2, 1906	11
8	Robert M. La Follette, Sr.	Republican	January 2, 1906 – June 18, 1925	11 (Continued)	Elected late in 1905
				12	Re-elected in 1910
				13	Re-elected in 1916
				14	Re-elected in 1922 Died
Vacant			June 18, 1925 – September 30, 1925
9	Robert M. La Follette, Jr.	Republican	September 30, 1925 – January 3, 1947	14 (Continued)	[Data unknown/missing. You can help!]
				15	(Re-?)elected in 1928
		Progressive		16	Re-elected in 1934
		Republican		17	Re-elected in 1940 Lost renomination
10	Joseph R. McCarthy	Republican	January 3, 1947 – May 2, 1957	18	Elected in 1946
				19	Re-elected in 1952 Died
Vacant			May 3, 1957 – August 27, 1957
11	William Proxmire	Democratic	August 28, 1957 – January 3, 1989	19 (Continued)	Elected to finish McCarthy's term
				20	Re-elected in 1958
				21	Re-elected in 1964
				22	Re-elected in 1970
				23	Re-elected in 1976
				24	Re-elected in 1982 Retired
12	Herb Kohl	Democratic	January 3, 1989 – January 3, 2013	25	Elected in 1988
				26	Re-elected in 1994
				27	Re-elected in 2000
				28	Re-elected in 2006 Retired
13	Tammy Baldwin	Democratic	January 3, 2013 – Present	29	Elected in 2012
#	Senator	Party	Years	Term	Electoral history

Class 3

#	Senator	Party	Years	Term	Electoral history
1	Isaac P. Walker	Democratic	June 8, 1848 – March 4, 1855	1	Elected in 1848 Retired
2	Charles Durkee	Republican	March 4, 1855 – March 4, 1861	2	Elected in 1855 [Data unknown/missing. You can help!]
3	Timothy O. Howe	Republican	March 4, 1861 – March 4, 1879	3	Elected in 1861
				4	Re-elected in 1867
				5	Re-elected in 1873 Lost re-election
4	Matthew H. Carpenter	Republican	March 4, 1879 – February 24, 1881	6	Elected in 1879 Died
Vacant			February 24, 1881 – March 14, 1881
5	Angus Cameron	Republican	March 14, 1881 – March 4, 1885	6 (Continued)	[Data unknown/missing. You can help!] Retired
6	John Coit Spooner	Republican	March 4, 1885 – March 4, 1891	7	Elected in 1885 Lost re-election
7	William F. Vilas	Democratic	March 4, 1891 – March 4, 1897	8	Elected in 1891 Lost renomination
8	John Coit Spooner	Republican	March 4, 1897 – April 30, 1907	9	Elected in 1897
				10	Re-elected in 1903 Resigned
Vacant			April 30, 1907 – May 17, 1907
9	Isaac Stephenson	Republican	May 17, 1907 – March 4, 1915	10 (Continued)	[Data unknown/missing. You can help!]
				11	(Re-?)elected in 1909 Retired
10	Paul O. Husting	Democratic	March 4, 1915 – October 21, 1917	12	Elected in 1914 Died
Vacant			October 21, 1917 – April 18, 1918
11	Irvine Lenroot	Republican	April 18, 1918 – March 4, 1927	12 (Continued)	[Data unknown/missing. You can help!]
				13	(Re-?)elected in 1920 Lost renomination
12	John J. Blaine	Republican	March 4, 1927 – March 4, 1933	14	Elected in 1926 Lost renomination
13	F. Ryan Duffy	Democratic	March 4, 1933 – January 3, 1939	15	Elected in 1932 Lost re-election
14	Alexander Wiley	Republican	January 3, 1939 – January 3, 1963	16	Elected in 1938
				17	Re-elected in 1944
				18	Re-elected in 1950
				19	Re-elected in 1956 Lost re-election
15	Gaylord A. Nelson	Democratic	January 8, 1963 – January 3, 1981	20	Elected in 1962
				21	Re-elected in 1968
				22	Re-elected in 1974 Lost re-election
16	Robert W. Kasten, Jr.	Republican	January 3, 1981 – January 3, 1993	23	Elected in 1980
				24	Re-elected in 1986 Lost re-election
17	Russ Feingold	Democratic	January 3, 1993 – January 3, 2011	25	Elected in 1992
				26	Re-elected in 1998
				27	Re-elected in 2004 Lost re-election
18	Ron Johnson	Republican	January 3, 2011 – Present	28	Elected in 2010
#	Senator	Party	Years	Term	Electoral history

See also

• List of United States Representatives from Wisconsin
• United States congressional delegations from Wisconsin