| Name | Held Office | Political Party |
|---|---|---|
| Arthur C. Mellette | Mar 22, 1889 Jan 3, 1893 |
Republican |
| Charles H. Sheldon | Jan 3, 1893 Jan 1, 1897 |
Republican |
| Andrew E. Lee | Jan 1, 1897 Jan 8, 1901 |
Populist |
| Charles N. Herreid | Jan 8, 1901 Jan 3, 1905 |
Republican |
| Samuel H. Elrod | Jan 3, 1905 Jan 8, 1907 |
Republican |
| Coe I. Crawford | Jan 8, 1907 Jan 5, 1909 |
Republican |
| Robert S. Vessey | Jan 5, 1909 Jan 7, 1913 |
Republican |
| Frank M. Byrne | Jan 7, 1913 Jan 2, 1917 |
Republican |
| Peter Norbeck | Jan 2, 1917 Jan 4, 1921 |
Republican |
| William H. McMaster | Jan 4, 1921 Jan 6, 1925 |
Republican |
| Carl Gunderson | Jan 6, 1925 Jan 4, 1927 |
Republican |
| William J. Bulow | Jan 4, 1927 Jan 6, 1931 |
Democratic |
| Warren Green | Jan 6, 1931 Jan 3, 1933 |
Republican |
| Tom Berry | Jan 3, 1933 Jan 5, 1937 |
Democratic |
| Leslie Jensen | Jan 5, 1937 Jan 3, 1939 |
Republican |
| Harlan J. Bushfield | Jan 3, 1939 Jan 5, 1943 |
Republican |
| Merrill Q. Sharpe | Jan 5, 1943 Jan 7, 1947 |
Republican |
| George T. Mickelson | Jan 7, 1947 Jan 2, 1951 |
Republican |
| Sigurd Anderson | Jan 2, 1951 Jan 4, 1955 |
Republican |
| Joe Foss | Jan 4, 1955 Jan 6, 1959 |
Republican |
| Ralph Herseth | Jan 6, 1959 Jan 3, 1961 |
Democratic |
| Archie M. Gubbrud | Jan 3, 1961 Jan 5, 1965 |
Republican |
| Nils Boe | Jan 5, 1965 Jan 7, 1969 |
Republican |
| Frank Farrar | Jan 7, 1969 Jan 5, 1971 |
Republican |
| Richard F. Kneip | Jan 5, 1971 Jul 24, 1978 |
Democratic |
| Harvey L. Wollman | Jul 24, 1978 Jan 1, 1979 |
Democratic |
| George S. Mickelson | Jan 6, 1987 Apr 19, 1993 |
Republican |
| Walter Dale Miller | Apr 19, 1993 Jan 7, 1995 |
Republican |
| William J. Janklow | Jan 5, 1995 Jan 7, 2003 |
Republican |
| M. Michael Rounds | Jan 7, 2003 Jan 8, 2011 |
Republican |
| Dennis Daugaard | Jan 8, 2011 Incumbent |
Republican |
