Member / delegate |
Party |
District |
Years |
Notes |
Wayne Allard |
Republican |
4th |
January 3, 1991 – January 3, 1997 |
Elected in 1990. Re-elected in 1992. Re-elected in 1994. Retired to run for U.S. Senator. |
William L. Armstrong |
Republican |
5th |
January 3, 1973 – January 3, 1979 |
Elected in 1972. Re-elected in 1974. Re-elected in 1976. Retired to run for U.S. senator. |
Wayne N. Aspinall |
Democratic |
4th |
January 3, 1949 – January 3, 1973 |
Elected in 1948. Re-elected in 1950. Re-elected in 1952. Re-elected in 1954. Re-elected in 1956. Re-elected in 1958. Re-elected in 1960. Re-elected in 1962. Re-elected in 1964. Re-elected in 1966. Re-elected in 1968. Re-elected in 1970. Lost renomination to Alan Merson. |
Bob Beauprez |
Republican |
7th |
January 3, 2003 – January 3, 2007 |
Elected in 2002. Re-elected in 2004. Retired after running for Governor of Colorado. |
James B. Belford |
Republican |
At-large |
October 3, 1876 – December 13, 1877 |
Elected in 1876. Lost contested election to Patterson. |
March 4, 1879 – March 4, 1885 |
Elected in 1878. Re-elected in 1880. Re-elected in 1882. Lost renomination to Symes. |
John Calhoun Bell |
Populist |
2nd |
March 4, 1893 – March 4, 1903 |
Elected in 1892. Re-lected in 1894. Re-elected in 1896. Re-elected in 1898. Re-elected in 1900. Lost re-election to Hogg. |
Hiram Pitt Bennet |
Conservative Republican |
Territory |
August 19, 1861 – March 4, 1865 |
Elected in 1861. Re-elected in 1862. Retired. |
Lauren Boebert |
Republican |
3rd |
January 3, 2021 – present |
Elected in 2020. Re-elected in 2022. |
Robert W. Bonynge |
Republican |
1st |
February 16, 1904 – March 4, 1909 |
Won contested election after Shafroth declared his conviction that his opponent was actually elected. Re-elected in 1904. Re-elected in 1906. Lost re-election to Rucker. |
Allen Alexander Bradford |
Republican |
Territory |
March 4, 1865 – March 4, 1867 |
Elected in 1864. Retired. |
March 4, 1869 – March 4, 1871 |
Elected in 1868. Retired. |
Franklin E. Brooks |
Republican |
At-large |
March 4, 1903 – March 4, 1907 |
Elected in 1902. Re-elected in 1904. Retired. |
Donald G. Brotzman |
Republican |
2nd |
January 3, 1963 – January 3, 1965 |
Elected in 1962. Lost re-election to McVicker. |
January 3, 1967 – January 3, 1975 |
Elected in 1966. Re-elected in 1968. Re-elected in 1970. Re-elected in 1972. Lost re-election to Wirth. |
Hank Brown |
Republican |
4th |
January 3, 1981 – January 3, 1991 |
Elected in 1980. Re-elected in 1982. Re-elected in 1984. Re-elected in 1986. Re-elected in 1988. Retired to run for U.S. Senator. |
Ken Buck |
Republican |
4th |
January 3, 2015 – March 22, 2024 |
Elected in 2014. Re-elected in 2016. Re-elected in 2018. Re-elected in 2020. Re-elected in 2022. Resigned. |
William E. Burney |
Democratic |
3rd |
November 5, 1940 – January 3, 1941 |
Elected to finish Martin's term. Retired. |
Ben Nighthorse Campbell |
Democratic |
3rd |
January 3, 1987 – January 3, 1993 |
Elected in 1986. Re-elected in 1988. Re-elected in 1990. Retired to run for U.S. senator. |
Yadira Caraveo |
Democratic |
8th |
January 3, 2023 – present |
Elected in 2022 |
John A. Carroll |
Democratic |
1st |
January 3, 1947 – January 3, 1951 |
Elected in 1946. Re-elected in 1948. Retired to run for U.S. senator. |
Jerome B. Chaffee |
Republican |
Territory |
March 4, 1871 – March 4, 1875 |
Elected in 1870. Re-elected in 1872. Retired. |
John Chenoweth |
Republican |
3rd |
January 3, 1941 – January 3, 1949 |
Elected in 1940. Re-elected in 1942. Re-elected in 1944. Re-elected in 1946. Lost re-election to Marsalis. |
January 3, 1951 – January 3, 1965 |
Re-elected in 1950. Re-elected in 1952. Re-elected in 1954. Re-elected in 1956. Re-elected in 1958. Re-elected in 1960. Re-elected in 1962. Lost re-election to Evans. |
George M. Chilcott |
Republican |
Territory |
March 4, 1867 – March 4, 1869 |
Elected in 1866. Retired. |
Mike Coffman |
Republican |
6th |
January 3, 2009 – January 3, 2019 |
Elected in 2008. Re-elected in 2010. Re-elected in 2012. Re-elected in 2014. Re-elected in 2016. Lost re-election to Crow. |
George W. Cook |
Republican |
At-large |
March 4, 1907 – March 4, 1909 |
Elected in 1906. Retired. |
Jason Crow |
Democratic |
6th |
January 3, 2019 – present |
Elected in 2018. Re-elected in 2020. Re-elected in 2022. |
Fred N. Cummings |
Democratic |
2nd |
March 4, 1933 – January 3, 1941 |
Elected in 1932. Re-elected in 1934. Re-elected in 1936. Re-elected in 1938. Lost re-election to Hill. |
Diana DeGette |
Democratic |
1st |
January 3, 1997 – present |
Elected in 1996. Re-elected in 1998. Re-elected in 2000. Re-elected in 2002. Re-elected in 2004. Re-elected in 2006. Re-elected in 2008. Re-elected in 2010. Re-elected in 2012. Re-elected in 2014. Re-elected in 2016. Re-elected in 2018. Re-elected in 2020. Re-elected in 2022. |
Peter H. Dominick |
Republican |
2nd |
January 3, 1961 – January 3, 1963 |
Elected in 1960. Retired to Run for U.S. senator. |
William R. Eaton |
Republican |
1st |
March 4, 1929 – March 4, 1933 |
Elected in 1928. Re-elected in 1930. Lost re-election to Lewis. |
Frank Evans |
Democratic |
3rd |
January 3, 1965 – January 3, 1979 |
Elected in 1964. Re-elected in 1966. Re-elected in 1968. Re-elected in 1970. Re-elected in 1972. Re-elected in 1974. Re-elected in 1976. Retired. |
Cory Gardner |
Republican |
4th |
January 3, 2011 – January 3, 2015 |
Elected in 2010. Re-elected in 2012. Retired to run for U.S. Senator. |
Dean M. Gillespie |
Republican |
1st |
March 7, 1944 – January 3, 1947 |
Elected to finish Lewis's term. Re-elected in 1944. Lost re-election to Carroll. |
Warren A. Haggott |
Republican |
2nd |
March 4, 1907 – March 4, 1909 |
Elected in 1906. Lost re-election to Martin. |
Guy U. Hardy |
Republican |
3rd |
March 4, 1919 – March 4, 1933 |
Elected in 1918. Re-elected in 1920. Re-elected in 1922. Re-elected in 1924. Re-elected in 1926. Re-elected in 1928. Re-elected in 1930. Lost re-election to Martin. |
Joel Hefley |
Republican |
5th |
January 3, 1987 – January 3, 2007 |
Elected in 1986. Re-elected in 1988. Re-elected in 1990. Re-elected in 1992. Re-elected in 1994. Re-elected in 1996. Re-elected in 1998. Re-elected in 2000. Re-elected in 2002. Re-elected in 2004. Retired. |
William S. Hill |
Republican |
2nd |
January 3, 1941 – January 3, 1959 |
Elected in 1940. Re-elected in 1942. Re-elected in 1944. Re-elected in 1946. Re-elected in 1948. Re-elected in 1950. Re-elected in 1952. Re-elected in 1954. Re-elected in 1956. Retired. |
Benjamin C. Hilliard |
Democratic |
1st |
March 4, 1915 – March 4, 1919 |
Elected in 1914. Re-elected in 1916. Lost re-election to Vaile. |
Herschel M. Hogg |
Republican |
2nd |
March 4, 1903 – March 4, 1907 |
Elected in 1902 Re-elected in 1904. Retired. |
Byron L. Johnson |
Democratic |
2nd |
January 3, 1959 – January 3, 1961 |
Elected in 1958. Lost re-election to Dominick. |
Jim Johnson |
Republican |
4th |
January 3, 1973 – January 3, 1981 |
Elected in 1972. Re-elected in 1974. Re-elected in 1976. Re-elected in 1978. Retired. |
Edward Keating |
Democratic |
At-large |
March 4, 1913 – March 4, 1915 |
Elected in 1912. Redistricted to the 3rd district. |
3rd |
March 4, 1915 – March 4, 1919 |
Redistricted from the at-large district and re-elected in 1914. Re-elected in 1916. Lost re-election to Hardy. |
George John Kindel |
Democratic |
1st |
March 4, 1913 – March 4, 1915 |
Elected in 1912. Retired to run for U.S. senator. |
Raymond P. Kogovsek |
Democratic |
3rd |
January 3, 1979 – January 3, 1985 |
Elected in 1978. Re-elected in 1980. Re-elected in 1982. Retired. |
Ken Kramer |
Republican |
5th |
January 3, 1979 – January 3, 1987 |
Elected in 1978. Re-elected in 1980. Re-elected in 1982. Re-elected in 1984. Retired to run for U.S. senator. |
Doug Lamborn |
Republican |
5th |
January 3, 2007 – present |
Elected in 2006. Re-elected in 2008. Re-elected in 2010. Re-elected in 2012. Re-elected in 2014. Re-elected in 2016. Re-elected in 2018. Re-elected in 2020. Re-elected in 2022. |
Lawrence Lewis |
Democratic |
1st |
March 4, 1933 – December 9, 1943 |
Elected in 1932. Re-elected in 1934. Re-elected in 1936. Re-elected in 1938. Re-elected in 1940. Re-elected in 1942. Died. |
Betsy Markey |
Democratic |
4th |
January 3, 2009 – January 3, 2011 |
Elected in 2008. Lost re-election to Gardner. |
John H. Marsalis |
Democratic |
3rd |
January 3, 1949 – January 3, 1951 |
Elected in 1948. Lost re-election to Chenoweth. |
John Andrew Martin |
Democratic |
2nd |
March 4, 1909 – March 4, 1913 |
Elected in 1908. Re-elected in 1910. Retired. |
3rd |
March 4, 1933 – December 23, 1939 |
Elected in 1932. Re-elected in 1934. Re-elected in 1936. Re-elected in 1938. Died. |
Scott McInnis |
Republican |
3rd |
January 3, 1993 – January 3, 2005 |
Elected in 1992. Re-elected in 1994. Re-elected in 1996. Re-elected in 1998. Re-elected in 2000. Re-elected in 2002. Retired. |
Mike McKevitt |
Republican |
1st |
January 3, 1971 – January 3, 1973 |
Elected in 1970. Lost re-election to Schroeder. |
Roy H. McVicker |
Democratic |
2nd |
January 3, 1965 – January 3, 1967 |
Elected in 1964. Lost re-election to Brotzman. |
Marilyn Musgrave |
Republican |
4th |
January 3, 2003 – January 3, 2009 |
Elected in 2002. Re-elected in 2004. Re-elected in 2006. Lost re-election to Markey. |
Joe Neguse |
Democratic |
2nd |
January 3, 2019 – present |
Elected in 2018. Re-elected in 2020. Re-elected in 2022. |
Thomas M. Patterson |
Democratic |
Territory |
March 4, 1875 –August 1, 1876 |
Elected in 1874. Colorado achieved statehood. |
At-large |
December 13, 1877– March 4, 1879 |
Won contested election. Retired. |
Lafe Pence |
Populist |
1st |
March 4, 1893 – March 4, 1895 |
Elected in 1892. Lost re-election to Shafroth. |
Ed Perlmutter |
Democratic |
7th |
January 3, 2007 – January 3, 2023 |
Elected in 2006. Re-elected in 2008. Re-elected in 2010. Re-elected in 2012. Re-elected in 2014. Re-elected in 2016. Re-elected in 2018. Re-elected in 2020. Retired. |
Brittany Pettersen |
Democratic |
7th |
January 3, 2023 – present |
Elected in 2022 |
Jared Polis |
Democratic |
2nd |
January 3, 2009 – January 3, 2019 |
Elected in 2008. Re-elected in 2010. Re-elected in 2012. Re-elected in 2014. Re-elected in 2016. Retired after being elected Governor of Colorado. |
Robert F. Rockwell |
Republican |
4th |
December 9, 1941 – January 3, 1949 |
Elected to finish Taylor's term. Re-elected in 1942. Re-elected in 1944. Re-elected in 1946. Lost re-election to Aspinall. |
Byron G. Rogers |
Democratic |
1st |
January 3, 1951 – January 3, 1971 |
Elected in 1950. Re-elected in 1952. Re-elected in 1954. Re-elected in 1956. Re-elected in 1958. Re-elected in 1960. Re-elected in 1962. Re-elected in 1964. Re-elected in 1966. Re-elected in 1968. Lost re-nomination to Craig S. Barnes. |
Atterson W. Rucker |
Democratic |
1st |
March 4, 1909 – March 4, 1913 |
Elected in 1908. Re-elected in 1910. Lost renomination to Kindel. |
John Salazar |
Democratic |
3rd |
January 3, 2005 – January 3, 2011 |
Elected in 2004. Re-elected in 2006. Re-elected in 2008. Lost re-election to Tipton. |
Daniel Schaefer |
Republican |
6th |
March 29, 1983 – January 3, 1999 |
Elected to begin Jack Swigert's term, who died before taking office. Re-elected in 1984. Re-elected in 1986. Re-elected in 1988. Re-elected in 1990. Re-elected in 1992. Re-elected in 1994. Re-elected in 1996. Retired. |
Bob Schaffer |
Republican |
4th |
January 3, 1997 – January 3, 2003 |
Elected in 1996. Re-elected in 1998. Re-elected in 2000. Retired. |
Pat Schroeder |
Democratic |
1st |
January 3, 1973 – January 3, 1997 |
Elected in 1972. Re-elected in 1974. Re-elected in 1976. Re-elected in 1978. Re-elected in 1980. Re-elected in 1982. Re-elected in 1984. Re-elected in 1986. Re-elected in 1988. Re-elected in 1990. Re-elected in 1992. Re-elected in 1994. Retired. |
Harry H. Seldomridge |
Democratic |
2nd |
March 4, 1913 – March 4, 1915 |
Elected in 1912. Lost re-election to Timberlake. |
John F. Shafroth |
Republican |
1st |
March 4, 1895 – March 4, 1897 |
Elected in 1894. |
Silver Republican |
March 4, 1897 – March 4, 1903 |
Re-elected in 1896 as a Silver Republican. Re-elected in 1898. Re-elected in 1900. |
Democratic |
March 4, 1903 – February 15, 1904 |
Re-elected in 1902 as a Democrat. Resigned after declaring his conviction that his opponent was actually elected. |
David Skaggs |
Democratic |
2nd |
January 3, 1987 – January 3, 1999 |
Elected in 1986. Re-elected in 1988. Re-elected in 1990. Re-elected in 1992. Re-elected in 1994. Re-elected in 1996. Retired. |
Michael L. Strang |
Republican |
3rd |
January 3, 1985 – January 3, 1987 |
Elected in 1984. Lost re-election to Campbell. |
George G. Symes |
Republican |
At-large |
March 4, 1885 – March 4, 1889 |
Elected in 1884. Re-elected in 1886. Retired. |
Tom Tancredo |
Republican |
6th |
January 3, 1999 – January 3, 2009 |
Elected in 1998. Re-elected in 2000. Re-elected in 2002. Re-elected in 2004. Re-elected in 2006. Retired. |
Edward T. Taylor |
Democratic |
At-large |
March 4, 1909 – March 4, 1915 |
Elected in 1908. Re-elected in 1910. Re-elected in 1912. Redistricted to the 4th district. |
4th |
March 4, 1915 – September 3, 1941 |
Redistricted from the at-large district and re-elected in 1914. Re-elected in 1916. Re-elected in 1918. Re-elected in 1920. Re-elected in 1922. Re-elected in 1924. Re-elected in 1926. Re-elected in 1928. Re-elected in 1930. Re-elected in 1932. Re-elected in 1934. Re-elected in 1936. Re-elected in 1938. Re-elected in 1940. Died. |
Charles B. Timberlake |
Republican |
2nd |
March 4, 1915 – March 4, 1933 |
Elected in 1914. Re-elected in 1916. Re-elected in 1918. Re-elected in 1920. Re-elected in 1922. Re-elected in 1924. Re-elected in 1926. Re-elected in 1928. Re-elected in 1930. Lost renomination to George H. Bradfield. |
Scott Tipton |
Republican |
3rd |
January 3, 2011 – January 3, 2021 |
Elected in 2010. Re-elected in 2012. Re-elected in 2014. Re-elected in 2016. Re-elected in 2018. Lost renomination to Boebert. |
Hosea Townsend |
Republican |
At-large |
March 4, 1889 – March 4, 1893 |
Elected in 1888. Re-elected in 1890. Redistricted to the 2nd district and lost renomination to Earl B. Coe. |
Mark Udall |
Democratic |
2nd |
January 3, 1999 – January 3, 2009 |
Elected in 1998. Re-elected in 2000. Re-elected in 2002. Re-elected in 2004. Re-elected in 2006. Retired after being elected to the U.S. Senate. |
William N. Vaile |
Republican |
1st |
March 4, 1919 – July 2, 1927 |
Elected in 1918. Re-elected in 1920. Re-elected in 1922. Re-elected in 1924. Re-elected in 1926. Died. |
S. Harrison White |
Democratic |
1st |
November 15, 1927 – March 4, 1929 |
Elected to finish Vaile's term. Lost re-election to Eaton. |
Tim Wirth |
Democratic |
2nd |
January 3, 1975 – January 3, 1987 |
Elected in 1974. Re-elected in 1976. Re-elected in 1978. Re-elected in 1980. Re-elected in 1982. Re-elected in 1984. Retired to Run for U.S. senator. |