List of United States senators from Wisconsin

Template:Short description Template:Use mdy dates Template:Multiple image Wisconsin was admitted to the Union on May 29, 1848. Its current U.S. senators are Republican Ron Johnson (since 2011) and Democrat Tammy Baldwin (since 2013), making it one of three states to have a split United States Senate delegation Template:As of.<ref>Template:Cite news</ref> William Proxmire was the state's longest serving senator (served 1957–1989).

List of senators

|- style="height:2em" | colspan=3 | Vacant | nowrap | May 29, 1848 –
Jun 8, 1848 | Wisconsin elected its senators 10 days after statehood. | rowspan=3 | 1 | rowspan=2 Template:List of United States senators Congress | rowspan=2 | 1 | Wisconsin elected its senators 10 days after statehood. | nowrap | May 29, 1848 –
Jun 8, 1848 | colspan=3 | Vacant

|- style="height:2em" ! rowspan=5 | 1 | rowspan=5 align=left |
Henry Dodge | rowspan=5 Template:Party shading/Democratic | Democratic | rowspan=5 nowrap | Jun 8, 1848 –
Mar 3, 1857 | rowspan=2 | Elected in 1848. | Elected in 1848. | rowspan=4 nowrap | Jun 8, 1848 –
Mar 3, 1855 | rowspan=4 Template:Party shading/Democratic | Democratic | rowspan=4 align=right |
Isaac P. Walker ! rowspan=4 | 1

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 2 | rowspan=3 | Re-elected in 1849.Template:PbRetired.

|- style="height:2em" | rowspan=3 | Re-elected in 1851.Template:PbRetired. | rowspan=3 | 2 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 3 | rowspan=3 | Elected in 1855.
Retired. | rowspan=3 nowrap | Mar 4, 1855 –
Mar 3, 1861 | rowspan=3 Template:Party shading/Republican | Republican | rowspan=3 align=right |
Charles Durkee ! rowspan=3 | 2

|- style="height:2em" ! rowspan=6 | 2 | rowspan=6 align=left |
James R. Doolittle | rowspan=6 Template:Party shading/Republican | Republican | rowspan=6 nowrap | Mar 4, 1857 –
Mar 3, 1869 | rowspan=3 | Elected in 1857. | rowspan=3 | 3 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 4 | rowspan=3 | Elected in 1861. | rowspan=9 nowrap | Mar 4, 1861 –
Mar 3, 1879 | rowspan=9 Template:Party shading/Republican | Republican | rowspan=9 align=right |
Timothy O. Howe ! rowspan=9 | 3

|- style="height:2em" | rowspan=3 | Re-elected in 1863.
Retired. | rowspan=3 | 4 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 5 | rowspan=3 | Re-elected in 1867.

|- style="height:2em" ! rowspan=3 | 3 | rowspan=3 align=left |
Matthew H. Carpenter | rowspan=3 Template:Party shading/Republican | Republican | rowspan=3 nowrap | Mar 4, 1869 –
Mar 3, 1875 | rowspan=3 | Elected in 1869.Template:PbLost re-election. | rowspan=3 | 5 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 6 | rowspan=3 | Re-elected in 1872.Template:PbLost re-election.

|- style="height:2em" ! rowspan=4 | 4 | rowspan=4 align=left |
Angus Cameron | rowspan=4 Template:Party shading/Republican | Republican | rowspan=4 nowrap | Mar 4, 1875 –
Mar 3, 1881 | rowspan=4 | Elected in 1875.Template:PbRetired. | rowspan=4 | 6 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | rowspan=2 Template:List of United States senators Congress | rowspan=5 | 7 | Elected in 1879.Template:PbDied. | nowrap | Mar 4, 1879 –
Feb 24, 1881 | Template:Party shading/Republican | Republican | align=right |
Matthew H. Carpenter ! 4

|- style="height:2em" | rowspan=2 |   | rowspan=2 nowrap | Feb 24, 1881 –
Mar 14, 1881 | rowspan=2 colspan=3 | Vacant

|- style="height:2em" ! rowspan=7 | 5 | rowspan=7 align=left |
Philetus Sawyer | rowspan=7 Template:Party shading/Republican | Republican | rowspan=7 nowrap | Mar 4, 1881 –
Mar 3, 1893 | rowspan=4 | Elected in 1881. | rowspan=4 | 7 | rowspan=2 Template:List of United States senators Congress

|- style="height:2em" | rowspan=2 | Elected to finish Carpenter's term.Template:PbRetired. | rowspan=2 nowrap | Mar 14, 1881 –
Mar 3, 1885 | rowspan=2 Template:Party shading/Republican | Republican | rowspan=2 align=right |
Angus Cameron ! rowspan=2 | 5

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 8 | rowspan=3 | Elected in 1885.Template:PbLost re-election. | rowspan=3 nowrap | Mar 4, 1885 –
Mar 3, 1891 | rowspan=3 Template:Party shading/Republican | Republican | rowspan=3 align=right |
John Coit Spooner ! rowspan=3 | 6

|- style="height:2em" | rowspan=3 | Re-elected in 1887.Template:PbRetired. | rowspan=3 | 8 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 9 | rowspan=3 | Elected in 1891.Template:PbLost renomination. | rowspan=3 nowrap | Mar 4, 1891 –
Mar 3, 1897 | rowspan=3 Template:Party shading/Democratic | Democratic | rowspan=3 align=right |
William F. Vilas ! rowspan=3 | 7

|- style="height:2em" ! rowspan=3 | 6 | rowspan=3 align=left |
John L. Mitchell | rowspan=3 Template:Party shading/Democratic | Democratic | rowspan=3 nowrap | Mar 4, 1893 –
Mar 3, 1899 | rowspan=3 | Elected in 1893.Template:PbRetired. | rowspan=3 | 9 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 10 | rowspan=3 | Elected in 1897.<ref>Template:Cite news</ref> | rowspan=6 nowrap | Mar 4, 1897 –
Apr 30, 1907 | rowspan=6 Template:Party shading/Republican | Republican | rowspan=6 align=right |
John Coit Spooner ! rowspan=6 | 8

|- style="height:2em" ! rowspan=3 | 7 | rowspan=3 align=left |
Joseph V. Quarles | rowspan=3 Template:Party shading/Republican | Republican | rowspan=3 nowrap | Mar 4, 1899 –
Mar 3, 1905 | rowspan=3 | Elected in 1899.Template:PbRetired. | rowspan=3 | 10 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=5 | 11 | rowspan=3 | Re-elected in 1903.<ref>Template:Cite news</ref>Template:PbResigned.

|- style="height:2em" ! rowspan=15 | 8 | rowspan=15 align=left | File:Robert M. La Follette, Sr.jpg
Robert M. La Follette | rowspan=15 Template:Party shading/Republican | Republican | rowspan=15 nowrap | Jan 4, 1906 –
Jun 18, 1925 | rowspan=5 | Elected in 1905.Template:PbDid not assume office until Jan 4, 1906 after resigning as Governor of Wisconsin. | rowspan=5 | 11 | Template:List of United States senators Congress

|- style="height:2em" | rowspan=3 Template:List of United States senators Congress

|- style="height:2em" |   | nowrap | Apr 30, 1907 –
May 17, 1907 | colspan=3 | Vacant

|- style="height:2em" | Elected to finish Spooner's term. | rowspan=4 nowrap | May 17, 1907 –
Mar 3, 1915 | rowspan=4 Template:Party shading/Republican | Republican | rowspan=4 align=right | File:Isaac Stephenson.jpg
Isaac Stephenson ! rowspan=4 | 9

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 12 | rowspan=3 | Re-elected in 1909.Template:PbRetired.

|- style="height:2em" | rowspan=3 | Re-elected in 1911. | rowspan=3 | 12 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=5 | 13 | rowspan=2 | Elected in 1914.Template:PbDied. | rowspan=2 nowrap | Mar 4, 1915 –
Oct 21, 1917 | rowspan=2 Template:Party shading/Democratic | Democratic | rowspan=2 align=right | File:SenatorHusting.jpg
Paul O. Husting ! rowspan=2 | 10

|- style="height:2em" | rowspan=5 | Re-elected in 1916. | rowspan=5 | 13 | rowspan=3 Template:List of United States senators Congress

|- style="height:2em" |   | nowrap | Oct 21, 1917 –
Apr 18, 1918 | colspan=3 | Vacant

|- style="height:2em" | rowspan=2 | Elected in 1918 to finish Husting's term. | rowspan=7 nowrap | Apr 18, 1918 –
Mar 3, 1927 | rowspan=7 Template:Party shading/Republican | Republican | rowspan=7 align=right | File:SenatorLenroot.jpg
Irvine Lenroot ! rowspan=7 | 11

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=5 | 14 | rowspan=5 | Re-elected in 1920.Template:PbLost renomination.

|- style="height:2em" | rowspan=2 | Re-elected in 1922.Template:PbDied. | rowspan=5 | 14 | Template:List of United States senators Congress

|- style="height:2em" | rowspan=3 Template:List of United States senators Congress

|- style="height:2em" | colspan=3 | Vacant | nowrap | Jun 18, 1925 –
Sep 30, 1925 |  

|- style="height:2em" ! rowspan=11 | 9 | rowspan=11 align=left | File:RMLaFolletteJr.jpg
Robert M. La Follette Jr. | rowspan=5 Template:Party shading/Republican | Republican | rowspan=11 nowrap | Sep 30, 1925 –
Jan 3, 1947 | rowspan=2 | Elected to finish his father's term

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 15 | rowspan=3 | Elected in 1926.Template:PbLost renomination. | rowspan=3 nowrap | Mar 4, 1927 –
Mar 3, 1933 | rowspan=3 Template:Party shading/Republican | Republican | rowspan=3 align=right | File:John J. Blaine.jpg
John J. Blaine ! rowspan=3 | 12

|- style="height:2em" | rowspan=3 | Re-elected in 1928. | rowspan=3 | 15 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 16 | rowspan=3 | Elected in 1932.Template:PbLost re-election. | rowspan=3 nowrap | Mar 4, 1933 –
Jan 3, 1939 | rowspan=3 Template:Party shading/Democratic | Democratic | rowspan=3 align=right | File:FRyanDuffy.jpg
F. Ryan Duffy ! rowspan=3 | 13

|- style="height:2em" | rowspan=6 Template:Party shading/Progressive (Wisconsin) | Progressive | rowspan=3 | Re-elected in 1934. | rowspan=3 | 16 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 17 | rowspan=3 | Elected in 1938. | rowspan=14 nowrap | Jan 3, 1939 –
Jan 3, 1963 | rowspan=14 Template:Party shading/Republican | Republican | rowspan=14 align=right | File:Alexander Wiley.jpg
Alexander Wiley ! rowspan=14 | 14

|- style="height:2em" | rowspan=3 | Re-elected in 1940.Template:PbLost nomination as a Republican. | rowspan=3 | 17 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 18 | rowspan=3 | Re-elected in 1944.

|- style="height:2em" ! rowspan=6 | 10 | rowspan=6 align=left | File:Joseph McCarthy.jpg
Joseph McCarthy | rowspan=6 Template:Party shading/Republican | Republican | rowspan=6 nowrap | Jan 3, 1947 –
May 2, 1957 | rowspan=3 | Elected in 1946. | rowspan=3 | 18 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 19 | rowspan=3 | Re-elected in 1950.

|- style="height:2em" | rowspan=3 | Re-elected in 1952.Template:PbDied. | rowspan=5 | 19 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | rowspan=3 Template:List of United States senators Congress | rowspan=5 | 20 | rowspan=5 | Re-elected in 1956.Template:PbLost re-election.

|- style="height:2em" | colspan=3 | Vacant | nowrap | May 2, 1957 –
Aug 27, 1957 |  

|- style="height:2em" ! rowspan=16 | 11 | rowspan=16 align=left | File:Senator William Proxmire.jpg
William Proxmire | rowspan=16 Template:Party shading/Democratic | Democratic | rowspan=16 nowrap | Aug 28, 1957 –
Jan 3, 1989 | Elected to finish McCarthy's term

|- style="height:2em" | rowspan=3 | Re-elected in 1958. | rowspan=3 | 20 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 21 | rowspan=3 | Elected in 1962. | rowspan=9 nowrap | Jan 3, 1963 –
Jan 3, 1981 | rowspan=9 Template:Party shading/Democratic | Democratic | rowspan=9 align=right | File:GaylordNelson.jpg
Gaylord Nelson ! rowspan=9 | 15

|- style="height:2em" | rowspan=3 | Re-elected in 1964. | rowspan=3 | 21 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 22 | rowspan=3 | Re-elected in 1968.

|- style="height:2em" | rowspan=3 | Re-elected in 1970. | rowspan=3 | 22 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 23 | rowspan=3 | Re-elected in 1974.Template:PbLost re-election.

|- style="height:2em" | rowspan=3 | Re-elected in 1976. | rowspan=3 | 23 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 24 | rowspan=3 | Elected in 1980. | rowspan=6 nowrap | Jan 3, 1981 –
Jan 3, 1993 | rowspan=6 Template:Party shading/Republican | Republican | rowspan=6 align=right | File:BobKasten (1).jpg
Bob Kasten ! rowspan=6 | 16

|- style="height:2em" | rowspan=3 | Re-elected in 1982.Template:PbRetired. | rowspan=3 | 24 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 25 | rowspan=3 | Re-elected in 1986.Template:PbLost re-election.

|- style="height:2em" ! rowspan=12 | 12 | rowspan=12 align=left | File:Herbert Kohl, official photo.jpg
Herb Kohl | rowspan=12 Template:Party shading/Democratic | Democratic | rowspan=12 nowrap | Jan 3, 1989 –
Jan 3, 2013 | rowspan=3 | Elected in 1988. | rowspan=3 | 25 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 26 | rowspan=3 | Elected in 1992. | rowspan=9 nowrap | Jan 3, 1993 –
Jan 3, 2011 | rowspan=9 Template:Party shading/Democratic | Democratic | rowspan=9 align=right | File:Russ Feingold Official Portrait 3.jpg
Russ Feingold ! rowspan=9 | 17

|- style="height:2em" | rowspan=3 | Re-elected in 1994. | rowspan=3 | 26 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 27 | rowspan=3 | Re-elected in 1998.

|- style="height:2em" | rowspan=3 | Re-elected in 2000. | rowspan=3 | 27 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 28 | rowspan=3 | Re-elected in 2004.Template:PbLost re-election.

|- style="height:2em" | rowspan=3 | Re-elected in 2006.Template:PbRetired. | rowspan=3 | 28 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 29 | rowspan=3 | Elected in 2010. | rowspan=9 nowrap | Jan 3, 2011 –
present | rowspan=9 Template:Party shading/Republican | Republican | rowspan=9 align=right | File:Ron Johnson portrait 117th Congress.jpg
Ron Johnson ! rowspan=9 | 18

|- style="height:2em" ! rowspan=9 | 13 | rowspan=9 align=left | File:Tammy Baldwin, official portrait, 113th Congress.jpg
Tammy Baldwin | rowspan=9 Template:Party shading/Democratic | Democratic | rowspan=9 nowrap | Jan 3, 2013 –
present | rowspan=3 | Elected in 2012. | rowspan=3 | 29 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 30 | rowspan=3 | Re-elected in 2016.

|- style="height:2em" | rowspan=3 | Re-elected in 2018. | rowspan=3 | 30 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 31 | rowspan=3 | Re-elected in 2022.

|- style="height:2em" | rowspan=3 | Re-elected in 2024. | rowspan=3 | 31 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=2 | 32 | rowspan=2 colspan=5 | To be determined in the 2028 election.

|- style="height:2em" | colspan=5 | To be determined in the 2030 election. | 32 | Template:List of United States senators Congress

See also

• List of United States representatives from Wisconsin
• United States congressional delegations from Wisconsin
• Elections in Wisconsin