Member Party Years Cong ress Electoral history District District established June 5, 1848 William Pitt Lynde (Milwaukee ) Democratic June 5, 1848 – March 3, 1849 30th Elected to the short term in 1848 . Lost re-election. Green, Jefferson, Milwaukee, Racine, Rock, Walworth, & Waukesha counties Charles Durkee (Kenosha ) Free Soil March 4, 1849 – March 3, 1853 31st 32nd Elected to the regular term in 1848 .Re-elected in 1850 . Retired. Milwaukee, Racine, Walworth, & Waukesha counties (& Kenosha—created in 1850 from Racine) Daniel Wells Jr. (Milwaukee ) Democratic March 4, 1853 – March 3, 1857 33rd 34th Elected in 1852 .Re-elected in 1854 . Retired. John F. Potter (East Troy ) Republican March 4, 1857 – March 3, 1863 35th 36th 37th Elected in 1856 .Re-elected in 1858 .Re-elected in 1860 . Lost re-election. James S. Brown (Milwaukee ) Democratic March 4, 1863 – March 3, 1865 38th Elected in 1862 .Withdrew from re-election . Kenosha, Milwaukee, Racine, Walworth, & Waukesha counties Halbert E. Paine (Milwaukee ) Republican March 4, 1865 – March 3, 1871 39th 40th 41st Elected in 1864 .Re-elected in 1866 .Re-elected in 1868 . Retired. Alexander Mitchell (Milwaukee ) Democratic March 4, 1871 – March 3, 1873 42nd Elected in 1870 .Redistricted to the 4th district . Charles G. Williams (Janesville ) Republican March 4, 1873 – March 3, 1883 43rd 44th 45th 46th 47th Elected in 1872 .Re-elected in 1874 .Re-elected in 1876 .Re-elected in 1878 .Re-elected in 1880 . Lost re-election. Kenosha, Racine, Rock, Walworth, & Waukesha counties John Winans (Janesville ) Democratic March 4, 1883 – March 3, 1885 48th Elected in 1882 . Retired to run for mayor of Janesville . Jefferson, Kenosha, Racine, Rock, & Walworth counties Lucien B. Caswell (Fort Atkinson ) Republican March 4, 1885 – March 3, 1891 49th 50th 51st Elected in 1884 .Re-elected in 1886 .Re-elected in 1888 . Lost renomination. Clinton Babbitt (Beloit ) Democratic March 4, 1891 – March 3, 1893 52nd Elected in 1890 . Lost re-election. Henry Allen Cooper (Racine ) Republican March 4, 1893 – March 3, 1919 53rd 54th 55th 56th 57th 58th 59th 60th 61st 62nd 63rd 64th 65th Elected in 1892 .Re-elected in 1894 .Re-elected in 1896 .Re-elected in 1898 .Re-elected in 1900 .Re-elected in 1902 .Re-elected in 1904 .Re-elected in 1906 .Re-elected in 1908 .Re-elected in 1910 .Re-elected in 1912 .Re-elected in 1914 .Re-elected in 1916 . Lost renomination and lost re-election as an independent . Green, Kenosha, Lafayette, Racine, Rock, & Walworth counties Green, Kenosha, Lafayette, Racine, Rock, & Walworth counties Kenosha, Racine, Rock, Walworth, & Waukesha counties Clifford E. Randall (Kenosha ) Republican March 4, 1919 – March 3, 1921 66th Elected in 1918 . Lost renomination. Henry Allen Cooper (Racine ) Republican March 4, 1921 – March 1, 1931 67th 68th 69th 70th 71st Elected in 1920 .Re-elected in 1922 .Re-elected in 1924 .Re-elected in 1926 .Re-elected in 1928 .Re-elected in 1930 but died before next term began. Vacant March 1, 1931 – October 13, 1931 71st 72nd Thomas Ryum Amlie (Elkhorn ) Republican October 13, 1931 – March 3, 1933 72nd Elected to finish Cooper's term . Lost renomination. George Washington Blanchard (Edgerton ) Republican March 4, 1933 – January 3, 1935 73rd Elected in 1932 . Renominated but withdrew prior to election. Green, Kenosha, Racine, Rock, & Walworth counties Thomas Ryum Amlie (Elkhorn ) Progressive January 3, 1935 – January 3, 1939 74th 75th Elected in 1934 .Re-elected in 1936 . Retired to run for U.S. senator . Stephen Bolles (Janesville ) Republican January 3, 1939 – July 8, 1941 76th 77th Elected in 1938 .Re-elected in 1940 . Died. Vacant July 8, 1941 – August 29, 1941 77th Lawrence H. Smith (Racine ) Republican August 29, 1941 – January 22, 1958 77th 78th 79th 80th 81st 82nd 83rd 84th 85th Elected to finish Bolles's term .Re-elected in 1942 .Re-elected in 1944 .Re-elected in 1946 .Re-elected in 1948 .Re-elected in 1950 .Re-elected in 1952 .Re-elected in 1954 .Re-elected in 1956 . Died. Vacant January 22, 1958 – January 3, 1959 85th Gerald T. Flynn (Racine ) Democratic January 3, 1959 – January 3, 1961 86th Elected in 1958 . Lost re-election. Henry C. Schadeberg (Burlington ) Republican January 3, 1961 – January 3, 1965 87th 88th Elected in 1960 .Re-elected in 1962 . Lost re-election. Lynn E. Stalbaum (Racine ) Democratic January 3, 1965 – January 3, 1967 89th Elected in 1964 . Lost re-election. Kenosha, Racine, Rock, & Walworth counties Henry C. Schadeberg (Burlington ) Republican January 3, 1967 – January 3, 1971 90th 91st Elected in 1966 .Re-elected in 1968 . Lost re-election. Les Aspin (East Troy ) Democratic January 3, 1971 – January 20, 1993 92nd 93rd 94th 95th 96th 97th 98th 99th 100th 101st 102nd 103rd Elected in 1970 .Re-elected in 1972 .Re-elected in 1974 .Re-elected in 1976 .Re-elected in 1978 .Re-elected in 1980 .Re-elected in 1982 .Re-elected in 1984 .Re-elected in 1986 .Re-elected in 1988 .Re-elected in 1990 .Re-elected in 1992 . Resigned to become U.S. Secretary of Defense . Kenosha, Racine, Rock, & Walworth counties & Green County Town of Albany Town of Spring Grove Village of Albany City of Brodhead Jefferson County Kenosha, Racine, Rock, & Walworth counties & Green County Town of Albany Town of Brooklyn Town of Cadiz Town of Clarno Town of Decatur Town of Exeter Town of Jefferson Town of Mt. Pleasant Town of Spring Grove Village of Albany Village of Browntown Village of Monticello City of Brodhead Jefferson County Vacant January 20, 1993 – May 4, 1993 103rd 1993–2003 Peter W. Barca (Kenosha ) Democratic May 4, 1993 – January 3, 1995 Elected to finish Aspin's term . Lost re-election. Mark Neumann (Janesville ) Republican January 3, 1995 – January 3, 1999 104th 105th Elected in 1994 .Re-elected in 1996 . Retired to run for U.S. senator . Paul Ryan (Janesville ) Republican January 3, 1999 – January 3, 2019 106th 107th 108th 109th 110th 111th 112th 113th 114th 115th Elected in 1998 .Re-elected in 2000 .Re-elected in 2002 .Re-elected in 2004 .Re-elected in 2006 .Re-elected in 2008 .Re-elected in 2010 .Re-elected in 2012 .Re-elected in 2014 .Re-elected in 2016 . Retired. 2003–2013 2013–2023 Bryan Steil (Janesville ) Republican January 3, 2019 – present 116th 117th 118th Elected in 2018 .Re-elected in 2020 .Re-elected in 2022 . 2023–present