Representative
Party
Years
Cong ress
Electoral history
Location
District created March 4, 1863
William B. Allison (Dubuque )
Republican
March 4, 1863 – March 3, 1871
38th 39th 40th 41st
Elected in 1862 .Re-elected in 1864 .Re-elected in 1866 .Re-elected in 1868 . Retired to run for U.S. Senator .
1863–1873 [data missing ]
William G. Donnan (Independence )
Republican
March 4, 1871 – March 3, 1875
42nd 43rd
Elected in 1870 .Re-elected in 1872 . Retired.
1873–1883 [data missing ]
Lucien L. Ainsworth (West Union )
Democratic
March 4, 1875 – March 3, 1877
44th
Elected in 1874 . Retired.
Theodore W. Burdick (Decorah )
Republican
March 4, 1877 – March 3, 1879
45th
Elected in 1876 . Retired.
Thomas Updegraff (McGregor )
Republican
March 4, 1879 – March 3, 1883
46th 47th
Elected in 1878 .Re-elected in 1880 . Redistricted to the 4th district and lost re-election there.
David B. Henderson (Dubuque )
Republican
March 4, 1883 – March 3, 1903
48th 49th 50th 51st 52nd 53rd 54th 55th 56th 57th
Elected in 1882 .Re-elected in 1884 .Re-elected in 1886 .Re-elected in 1888 .Re-elected in 1890 .Re-elected in 1892 .Re-elected in 1894 .Re-elected in 1896 .Re-elected in 1898 .Re-elected in 1900 . Renominated but withdrew prior to election.
1883–1887 Black Hawk , Bremer , Buchanan , Butler , Delaware , Dubuque , and Grundy counties
1887–1933 Black Hawk , Bremer , Buchanan , Butler , Delaware , Dubuque , Franklin , Hardin , and Wright counties
Benjamin P. Birdsall (Clarion )
Republican
March 4, 1903 – March 3, 1909
58th 59th 60th
Elected in 1902 .Re-elected in 1904 .Re-elected in 1906 . Retired.
Charles E. Pickett (Waterloo )
Republican
March 4, 1909 – March 3, 1913
61st 62nd
Elected in 1908 .Re-elected in 1910 . Lost re-election.
Maurice Connolly (Dubuque )
Democratic
March 4, 1913 – March 3, 1915
63rd
Elected in 1912 . Retired to run for U.S. Senator .
Burton E. Sweet (Waverly )
Republican
March 4, 1915 – March 3, 1923
64th 65th 66th 67th
Elected in 1914 .Re-elected in 1916 .Re-elected in 1918 .Re-elected in 1920 . Retired to run for U.S. Senator .
Thomas J. B. Robinson (Hampton )
Republican
March 4, 1923 – March 3, 1933
68th 69th 70th 71st 72nd
Elected in 1922 .Re-elected in 1924 .Re-elected in 1926 .Re-elected in 1928 .Re-elected in 1930 . Lost re-election.
Albert C. Willford (Waterloo )
Democratic
March 4, 1933 – January 3, 1935
73rd
Elected in 1932 . Lost re-election.
1933–1943 [data missing ]
John W. Gwynne (Waterloo )
Republican
January 3, 1935 – January 3, 1949
74th 75th 76th 77th 78th 79th 80th
Elected in 1934 .Re-elected in 1936 .Re-elected in 1938 .Re-elected in 1940 .Re-elected in 1942 .Re-elected in 1944 .Re-elected in 1946 . Lost renomination.
1943–1963 [data missing ]
Harold R. Gross (Waterloo )
Republican
January 3, 1949 – January 3, 1975
81st 82nd 83rd 84th 85th 86th 87th 88th 89th 90th 91st 92nd 93rd
Elected in 1948 .Re-elected in 1950 .Re-elected in 1952 .Re-elected in 1954 .Re-elected in 1956 .Re-elected in 1958 .Re-elected in 1960 .Re-elected in 1962 .Re-elected in 1964 .Re-elected in 1966 .Re-elected in 1968 .Re-elected in 1970 .Re-elected in 1972 . Retired.
1963–1973 [data missing ]
1973–1983 [data missing ]
Chuck Grassley (New Hartford )
Republican
January 3, 1975 – January 3, 1981
94th 95th 96th
Elected in 1974 .Re-elected in 1976 .Re-elected in 1978 . Retired to run for U.S. Senator .
T. Cooper Evans (Grundy Center )
Republican
January 3, 1981 – January 3, 1987
97th 98th 99th
Elected in 1980 .Re-elected in 1982 .Re-elected in 1984 . Retired.
1983–1993 [data missing ]
David R. Nagle (Cedar Rapids )
Democratic
January 3, 1987 – January 3, 1993
100th 101st 102nd
Elected in 1986 .Re-elected in 1988 .Re-elected in 1990 . Redistricted to the 2nd district and lost re-election.
Jim R. Lightfoot (Shenandoah )
Republican
January 3, 1993 – January 3, 1997
103rd 104th
Redistricted from the 5th district and re-elected in 1992 .Re-elected in 1994 . Retired to run for U.S. Senator .
1993–2003 [data missing ]
Leonard Boswell (Des Moines )
Democratic
January 3, 1997 – January 3, 2013
105th 106th 107th 108th 109th 110th 111th 112th
Elected in 1996 .Re-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 . Lost re-election.
2003–2013
Tom Latham (Clive )
Republican
January 3, 2013 – January 3, 2015
113th
Redistricted from the 4th district and re-elected in 2012 . Retired.
2013–2023
David Young (Van Meter )
Republican
January 3, 2015 – January 3, 2019
114th 115th
Elected in 2014 .Re-elected in 2016 . Lost re-election.
Cindy Axne (West Des Moines )
Democratic
January 3, 2019 – January 3, 2023
116th 117th
Elected in 2018 .Re-elected in 2020 . Lost re-election.
Zach Nunn (Bondurant )
Republican
January 3, 2023 – present
118th
Elected in 2022
2023–present :