| Years Served | Party | Governor | % Correct |
|---|---|---|---|
| 2007 - 2011 | Democrat | Chet Culver | 100%
|
| 2017 - Present | Republican | Kim Reynolds | 100%
|
| 1969 - 1983 | Republican | Robert D. Ray | 100%
|
| 1983 - 1999 | Republican | Terry Branstad | 100%
|
| 2011 - 2017 | Republican | Terry Branstad | 100%
|
| 1999 - 2007 | Democrat | Tom Vilsack | 100%
|
| 1846 - 1850 | Democrat | Ansel Briggs | 50%
|
| 1872 - 1876 | Republican | Cyrus C. Carpenter | 50%
|
| 1931 - 1933 | Republican | Dan W. Turner | 50%
|
| 1896 - 1898 | Republican | Francis M. Drake | 50%
|
| 1894 - 1896 | Republican | Frank D. Jackson | 50%
|
| 1913 - 1917 | Republican | George W. Clarke | 50%
|
| 1963 - 1969 | Democrat | Harold Hughes | 50%
|
| 1890 - 1894 | Democrat | Horace Boies | 50%
|
| 1854 - 1858 | Whig | James W. Grimes | 50%
|
| 1925 - 1931 | Republican | John Hammill | 50%
|
| 1878 - 1882 | Republican | John H. Gear | 50%
|
| 1877 - 1878 | Republican | Joshua G. Newbold | 50%
|
| 1955 - 1957 | Republican | Leo Hoegh | 50%
|
| 1898 - 1902 | Republican | L. M. Shaw | 50%
|
| 1858 - 1860 | Republican | Ralph P. Lowe | 50%
|
| 1969 | Democrat | Robert D. Fulton | 50%
|
| 1860 - 1864 | Republican | Samuel J. Kirkwood | 50%
|
| 1876 - 1877 | Republican | Samuel J. Kirkwood | 50%
|
| 1868 - 1872 | Republican | Samuel Merrill | 50%
|
| 1850 - 1854 | Democrat | Stephen P. Hempstead | 50%
|
| 1908 - 1909 | Republican | Warren Garst | 50%
|
| 1886 - 1890 | Republican | William Larrabee | 50%
|
| 1917 - 1921 | Republican | William L. Harding | 50%
|
| 1864 - 1868 | Republican | William M. Stone | 50%
|
| 1902 - 1908 | Republican | Albert B. Cummins | 0%
|
| 1909 - 1913 | Republican | Beryl F. Carroll | 0%
|
| 1943 - 1945 | Republican | Bourke B. Hickenlooper | 0%
|
| 1882 - 1886 | Republican | Buren R. Sherman | 0%
|
| 1933 - 1937 | Democrat | Clyde L. Herring | 0%
|
| 1939 - 1943 | Republican | George A. Wilson | 0%
|
| 1957 - 1961 | Democrat | Herschel C. Loveless | 0%
|
| 1954 - 1955 | Republican | Leo Elthon | 0%
|
| 1921 - 1925 | Republican | Nathan E. Kendall | 0%
|
| 1937 - 1939 | Democrat | Nelson G. Kraschel | 0%
|
| 1961 - 1963 | Republican | Norman A. Erbe | 0%
|
| 1945 - 1949 | Republican | Robert D. Blue | 0%
|
| 1949 - 1954 | Republican | William S. Beardsley | 0%
|