List of United States Senators from Colorado
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Colorado was admitted to the Union on August 1, 1876.
| Senator | Party | From | To |
|---|---|---|---|
| Henry M. Teller | Republican | 1876 | 1882 |
| George M. Chilcott | Republican | 1882 | 1883 |
| Horace A. W. Tabor | Republican | 1883 | |
| Thomas M. Bowen | Republican | 1883 | 1889 |
| Edward O. Wolcott | Republican | 1889 | 1901 |
| Thomas MacDonald Patterson | Democratic | 1901 | 1907 |
| Simon Guggenheim | Republican | 1907 | 1913 |
| John F. Shafroth | Democratic | 1913 | 1919 |
| Lawrence C. Phipps | Republican | 1919 | 1931 |
| Edward P. Costigan | Democratic | 1931 | 1937 |
| Edwin C. Johnson | Democratic | 1937 | 1955 |
| Gordon L. Allott | Republican | 1955 | 1973 |
| Floyd K. Haskell | Democratic | 1973 | 1979 |
| William L. Armstrong | Republican | 1979 | 1991 |
| Hank Brown | Republican | 1991 | 1997 |
| Wayne Allard | Republican | 1997 |
| Senator | Party | From | To |
|---|---|---|---|
| Jerome B. Chaffee | Republican | 1876 | 1879 |
| Nathaniel P. Hill | Republican | 1879 | 1885 |
| Henry M. Teller | Republican, Independent, Democratic |
1885 | 1909 |
| Charles J. Hughes, Jr. | Democratic | 1909 | 1911 |
| Charles S. Thomas | Democratic | 1913 | 1921 |
| Samuel D. Nicholson | Republican | 1921 | 1923 |
| Alva B. Adams | Democratic | 1923 | 1924 |
| Rice W. Means | Republican | 1924 | 1927 |
| Charles W. Waterman | Republican | 1927 | 1932 |
| Walter Walker | Democratic | 1932 | |
| Karl C. Schuyler | Republican | 1932 | 1933 |
| Alva B. Adams | Democratic | 1933 | 1941 |
| Eugene D. Millikin | Republican | 1941 | 1957 |
| John A. Carroll | Democratic | 1957 | 1963 |
| Peter H. Dominick | Republican | 1963 | 1975 |
| Gary Hart | Democratic | 1975 | 1987 |
| Timothy E. Wirth | Democratic | 1987 | 1993 |
| Ben Nighthorse Campbell | Democratic, Republican |
1993 | 2005 |
| Ken Salazar | Democratic | 2005 |