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.
|
Greg Lopez
|
Republican
|
4th
|
June 25, 2024 – present
|
Elected to finish Buck's term
|
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.
|
style="background-color:Template:Silver Republican Party/meta/color;" width=10px | " | 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.
|