| Name | Held Office | Political Party |
|---|---|---|
| Ansel Briggs | Dec 3, 1846 Dec 4, 1850 |
Democratic |
| Stephen P. Hempstead | Dec 4, 1850 Dec 9, 1854 |
Democratic |
| James W. Grimes | Dec 9, 1854 Jan 13, 1858 |
Whig |
| Ralph P. Lowe | Jan 13, 1858 Jan 11, 1860 |
Republican |
| William M. Stone | Jan 14, 1864 Jan 16, 1868 |
Republican |
| Samuel Merrill | Jan 16, 1868 Jan 11, 1872 |
Republican |
| Cyrus C. Carpenter | Jan 11, 1872 Jan 13, 1876 |
Republican |
| Samuel J. Kirkwood | Jan 13, 1876 Feb 1, 1877 |
Republican |
| Joshua G. Newbold | Feb 1, 1877 Jan 17, 1878 |
Republican |
| John H. Gear | Jan 17, 1878 Jan 12, 1882 |
Republican |
| Buren R. Sherman | Jan 12, 1882 Jan 14, 1886 |
Republican |
| William Larrabee | Jan 14, 1886 Feb 27, 1890 |
Republican |
| Horace Boies | Feb 27, 1890 Jan 11, 1894 |
Democratic |
| Frank D. Jackson | Jan 11, 1894 Jan 16, 1896 |
Republican |
| Francis M. Drake | Jan 16, 1896 Jan 13, 1898 |
Republican |
| Leslie M. Shaw | Jan 13, 1898 Jan 16, 1902 |
Republican |
| Albert B. Cummins | Jan 16, 1902 Nov 24, 1908 |
Republican |
| Warren Garst | Nov 24, 1908 Jan 14, 1909 |
Republican |
| Beryl F. Carroll | Jan 14, 1909 Jan 16, 1913 |
Republican |
| George W. Clarke | Jan 16, 1913 Jan 11, 1917 |
Republican |
| William L. Harding | Jan 11, 1917 Jan 13, 1921 |
Republican |
| N. E. Kendall | Jan 13, 1921 Jan 15, 1925 |
Republican |
| John Hammill | Jan 15, 1925 Jan 15, 1931 |
Republican |
| Daniel Webster Turner | Jan 15, 1931 Jan 12, 1933 |
Republican |
| Clyde L. Herring | Jan 12, 1933 Jan 14, 1937 |
Democratic |
| Nelson G. Kraschel | Jan 14, 1937 Jan 12, 1939 |
Democratic |
| George A. Wilson | Jan 12, 1939 Jan 14, 1943 |
Republican |
| Bourke B. Hickenlooper | Jan 14, 1943 Jan 11, 1945 |
Republican |
| Robert D. Blue | Jan 11, 1945 Jan 13, 1949 |
Republican |
| William S. Beardsley | Jan 13, 1949 Nov 21, 1954 |
Republican |
| Leo Elthon | Nov 22, 1954 Jan 13, 1955 |
Republican |
| Leo A. Hoegh | Jan 13, 1955 Jan 17, 1957 |
Republican |
| Herschel C. Loveless | Jan 17, 1957 Jan 17, 1961 |
Democratic |
| Norman A. Erbe | Jan 12, 1961 Jan 17, 1963 |
Republican |
| Harold E. Hughes | Jan 17, 1963 Jan 1, 1969 |
Democratic |
| Robert D. Fulton | Jan 1, 1969 Jan 16, 1969 |
Democratic |
| Robert D. Ray | Jan 16, 1969 Jan 14, 1983 |
Republican |
| Tom Vilsack | Jan 15, 1999 Jan 12, 2007 |
Democratic |
| Chet Culver | Jan 12, 2007 Jan 14, 2011 |
Democratic |
| Terry E. Branstad | Jan 14, 2011 Incumbent |
Republican |
