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)	Elected 1925
				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)	Elected 1918
				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

Living former U.S. Senators from Wisconsin

As of April 2015, there are three former U.S. Senators from the U.S. State of Wisconsin who are currently living at this time, one from Class 1 and two from Class 2.

Senator	Term of office	Class	Date of birth (and age)
Bob Kasten	1981–1993	2	(1942-06-19) June 19, 1942
Herb Kohl	1989–2013	1	(1935-02-07) February 7, 1935
Russ Feingold	1993–2011	2	(1953-03-02) March 2, 1953

See also

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