| Member |
Party |
Term |
Cong ress |
Electoral history |
Location |
| District created March 4, 1847 |
 Shepherd Leffler (Burlington) |
Democratic |
March 4, 1847 – March 3, 1851 |
30th 31st |
Redistricted from the at-large district and re-elected in 1846. Re-elected in 1848. Retired. |
1847–1849 [data missing] |
1849–1859 [data missing] |
 Lincoln Clark (Dubuque) |
Democratic |
March 4, 1851 – March 3, 1853 |
32nd |
Elected in 1850. Lost re-election. |
 John P. Cook (Davenport) |
Whig |
March 4, 1853 – March 3, 1855 |
33rd |
Elected in 1852. Retired. |
 James Thorington (Davenport) |
Whig |
March 4, 1855 – March 3, 1857 |
34th |
Elected in 1854. Lost renomination. |
 Timothy Davis (Dubuque) |
Republican |
March 4, 1857 – March 3, 1859 |
35th |
Elected in 1856. Retired. |
 William Vandever (Dubuque) |
Republican |
March 4, 1859 – March 3, 1863 |
36th 37th |
Elected in 1858. Re-elected in 1860. Retired.[a] |
1859–1863 [data missing] |
 Hiram Price (Davenport) |
Republican |
March 4, 1863 – March 3, 1869 |
38th 39th 40th |
Elected in 1862. Re-elected in 1864. Re-elected in 1866. Retired. |
1863–1873 [data missing] |
 William Smyth (Marion) |
Republican |
March 4, 1869 – September 30, 1870 |
41st |
Elected in 1868. Died. |
| Vacant |
September 30, 1870 – December 6, 1870 |
|
 William P. Wolf (Tipton) |
Republican |
December 6, 1870 – March 3, 1871 |
Elected to finish Smyth's term. Retired. |
 Aylett R. Cotton (Lyons) |
Republican |
March 4, 1871 – March 3, 1875 |
42nd 43rd |
Elected in 1870. Re-elected in 1872. Lost renomination.[b] |
1873–1887 Cedar, Clinton, Jackson, Jones, Muscatine, and Scott counties |
 John Q. Tufts (Wilton Junction) |
Republican |
March 4, 1875 – March 3, 1877 |
44th |
Elected in 1874. Retired. |
 Hiram Price (Davenport) |
Republican |
March 4, 1877 – March 3, 1881 |
45th 46th |
Elected in 1876. Re-elected in 1878. Retired. |
 Sewall S. Farwell (Monticello) |
Republican |
March 4, 1881 – March 3, 1883 |
47th |
Elected in 1880. Lost re-election. |
 Jeremiah H. Murphy (Davenport) |
Democratic |
March 4, 1883 – March 3, 1887 |
48th 49th |
Elected in 1882. Re-elected in 1884. Lost renomination. |
 Walter I. Hayes (Clinton) |
Democratic |
March 4, 1887 – March 3, 1895 |
50th 51st 52nd 53rd |
Elected in 1886. Re-elected in 1888. Re-elected in 1890. Re-elected in 1892. Lost re-election. |
1887–1933 Clinton, Iowa, Jackson, Johnson, Muscatine, and Scott counties |
 George M. Curtis (Clinton) |
Republican |
March 4, 1895 – March 3, 1899 |
54th 55th |
Elected in 1894. Re-elected in 1896. Retired. |
 Joseph R. Lane (Davenport) |
Republican |
March 4, 1899 – March 3, 1901 |
56th |
Elected in 1898. Retired. |
 John N. W. Rumple (Marengo) |
Republican |
March 4, 1901 – January 31, 1903 |
57th |
Elected in 1900. Retired and died before next term. |
| Vacant |
January 31, 1903 – March 3, 1903 |
|
 Martin J. Wade (Iowa City) |
Democratic |
March 4, 1903 – March 3, 1905 |
58th |
Elected in 1902. Lost re-election. |
 Albert F. Dawson (Preston) |
Republican |
March 4, 1905 – March 3, 1911 |
59th 60th 61st |
Elected in 1904. Re-elected in 1906. Re-elected in 1908. Retired. |
 Irvin S. Pepper (Muscatine) |
Democratic |
March 4, 1911 – December 22, 1913 |
62nd 63rd |
Elected in 1910. Re-elected in 1912. Died. |
| Vacant |
December 22, 1913 – February 10, 1914 |
63rd |
|
 Henry Vollmer (Davenport) |
Democratic |
February 10, 1914 – March 3, 1915 |
Elected to finish Pepper's term. Retired. |
 Harry E. Hull (Williamsburg) |
Republican |
March 4, 1915 – March 3, 1925 |
64th 65th 66th 67th 68th |
Elected in 1914. Re-elected in 1916. Re-elected in 1918. Re-elected in 1920. Re-elected in 1922. Lost renomination. |
 F. Dickinson Letts (Davenport) |
Republican |
March 4, 1925 – March 3, 1931 |
69th 70th 71st |
Elected in 1924. Re-elected in 1926. Re-elected in 1928. Lost re-election. |
 Bernhard M. Jacobsen (Clinton) |
Democratic |
March 4, 1931 – June 30, 1936 |
72nd 73rd 74th |
Elected in 1930. Re-elected in 1932. Re-elected in 1934. Died. |
1933–1943 [data missing] |
| Vacant |
June 30, 1936 – January 3, 1937 |
74th |
|
 William S. Jacobsen (Clinton) |
Democratic |
January 3, 1937 – January 3, 1943 |
75th 76th 77th |
Elected in 1936. Re-elected in 1938. Re-elected in 1940. Lost re-election. |
 Henry O. Talle (Decorah) |
Republican |
January 3, 1943 – January 3, 1959 |
78th 79th 80th 81st 82nd 83rd 84th 85th |
Redistricted from the 4th district and 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. Lost re-election. |
1943–1963 [data missing] |
 Leonard G. Wolf (Elkader) |
Democratic |
January 3, 1959 – January 3, 1961 |
86th |
Elected in 1958. Lost re-election. |
 James E. Bromwell (Cedar Rapids) |
Republican |
January 3, 1961 – January 3, 1965 |
87th 88th |
Elected in 1960. Re-elected in 1962. Lost re-election. |
1963–1973 [data missing] |
 John Culver (Cedar Rapids) |
Democratic |
January 3, 1965 – January 3, 1975 |
89th 90th 91st 92nd 93rd |
Elected in 1964. Re-elected in 1966. Re-elected in 1968. Re-elected in 1970. Re-elected in 1972. Retired to run for U.S. senator. |
1973–1983 [data missing] |
 Mike Blouin (Dubuque) |
Democratic |
January 3, 1975 – January 3, 1979 |
94th 95th |
Elected in 1974. Re-elected in 1976. Lost re-election. |
 Tom Tauke (Dubuque) |
Republican |
January 3, 1979 – January 3, 1991 |
96th 97th 98th 99th 100th 101st |
Elected in 1978. Re-elected in 1980. Re-elected in 1982. Re-elected in 1984. Re-elected in 1986. Re-elected in 1988. Retired to run for U.S. senator. |
1983–1993 [data missing] |
 Jim Nussle (Manchester) |
Republican |
January 3, 1991 – January 3, 2003 |
102nd 103rd 104th 105th 106th 107th |
Elected in 1990. Re-elected in 1992. Re-elected in 1994. Re-elected in 1996. Re-elected in 1998. Re-elected in 2000. Redistricted to the 1st district. |
1993–2003 [data missing] |
 Jim Leach (Davenport) |
Republican |
January 3, 2003 – January 3, 2007 |
108th 109th |
Redistricted from the 1st district and re-elected in 2002. Re-elected in 2004. Lost re-election. |
2003–2013
 |
 Dave Loebsack (Iowa City) |
Democratic |
January 3, 2007 – January 3, 2021 |
110th 111th 112th 113th 114th 115th 116th |
Elected in 2006. Re-elected in 2008. Re-elected in 2010. Re-elected in 2012. Re-elected in 2014. Re-elected in 2016. Re-elected in 2018. Retired. |
2013–2023
 |
 Mariannette Miller-Meeks (Ottumwa) |
Republican |
January 3, 2021 – January 3, 2023 |
117th |
Elected in 2020. Redistricted to the 1st district. |
 Ashley Hinson (Marion) |
Republican |
January 3, 2023 – present |
118th 119th |
Redistricted from the 1st district and re-elected in 2022. Re-elected in 2024. Retiring to run for U.S. Senate. |
2023–present: northeast quadrant of the state
 |