| Name | Held Office | Political Party |
|---|---|---|
| John E. Rickards | Jan 2, 1893 Jan 3, 1897 |
Republican |
| Robert Burns Smith | Jan 4, 1893 Jan 7, 1901 |
Democratic |
| Joseph K. Toole | Jan 7, 1901 Apr 1 1908 |
Democratic |
| Edwin L. Norris | Apr 1, 1908 Jan 5, 1913 |
Democratic |
| Sam V. Stewart | Jan 6, 1913 Jan 2, 1921 |
Democratic |
| Joseph M. Dixon | Jan 3 1921 Jan 4, 1925 |
Republican |
| John Edward Erickson | Jan 4, 1925 Mar 13, 1933 |
Democratic |
| Frank Henry Cooney | Mar 13, 1933 Dec 15, 1935 |
Democratic |
| Elmer Holt | Dec 15, 1935 Jan 4, 1937 |
Democratic |
| Roy E. Ayers | Jan 4, 1937 Jan 6, 1941 |
Democratic |
| John W. Bonner | Jan 6, 1941 Jan 3, 1949 |
Democratic |
| Sam C. Ford | Jan 6, 1941 Nov 25, 1825 |
Republican |
| J. Hugo Aronson | Jan 5, 1953 Jan 2, 1961 |
Republican |
| Donald Grant Nutter | Jan 2, 1961 Jan 25, 1962 |
Republican |
| Tim M. Babcock | Jan 25, 1962 Jan 6, 1969 |
Republican |
| Forrest H. Andersons | Jan 6, 1969 Jan 1, 1973 |
Democratic |
| Thomas Lee Judge | Jan 1, 1973 Jan 5, 1981 |
Democratic |
| Ted Schwinden | Jan 5, 1981 Jan 2, 1989 |
Democratic |
| Stan Stephens | Jan 2, 1989 Jan 4, 1993 |
Republican |
| Marc Racicot | Jan 4, 1993 Jan 1, 2001 |
Republican |
| Judy Martz | Jan 1, 2001 Jan 3, 2005 |
Republican |
| Brian Schweitzer | Jan 3, 2005 Incumbent |
Democratic |
