The State of Colorado was represented in the United States House of Representatives by one U.S. Representative at-large from 1876 until 1893 and from 1903 until 1913, and by two U.S. Representatives at-large from 1913 until 1915. Since the U.S. election of 1914, all U.S. Representatives from the State of Colorado have been elected from congressional districts.
Colorado was represented by only one United States Representative, elected at-large by the entire state, from its admission as a state until 1893.
|District created||October 3, 1876|
|James B. Belford||Republican||October 3, 1876 –
December 13, 1877
|Elected in 1876|
Lost contested election to Patterson
|Thomas M. Patterson||Democratic||December 13, 1877 –
March 3, 1879
|45th||Won contested election|
|James B. Belford||Republican||March 4, 1879 –
March 3, 1885
|First elected in 1878|
|George G. Symes||Republican||March 4, 1885 –
March 3, 1889
|First elected in 1884|
|Hosea Townsend||Republican||March 4, 1889 –
March 3, 1893
|First elected in 1888|
|Seat replaced by districted seats||March 4, 1893|
Colorado was granted a second seat in the U.S. House of Representatives beginning with the U.S. election of 1892. Colorado created two congressional districts: Colorado's 1st congressional district and Colorado's 2nd congressional district.
Colorado was apportioned a third seat in the U.S. House of Representatives beginning with the U.S. election of 1902. Colorado's third U.S. Representative was elected at-large. Colorado was apportioned a fourth seat in beginning with the U.S. election of 1912.
|Seat A||Seat B|
|Representative||Party||Electoral history||Representative||Party||Electoral history|
|March 4, 1903 –
March 3, 1907
|Franklin Eli Brooks||Republican||First elected in 1902|
|March 4, 1907 –
March 3, 1909
|60th||George W. Cook||Republican||Elected in 1906|
|March 4, 1909 –
March 3, 1913
|Edward Thomas Taylor||Democratic||First elected in 1908|
Redistricted to the 4th district
|March 4, 1913 –
March 3, 1915
|63rd||Edward Keating||Democratic||First elected in 1912|
Redistricted to the 3rd district
Colorado used four congressional districts beginning with the U.S. election of 1914.
- Colorado Territory's at-large congressional district
- Colorado Congressional Districts
- List of United States Representatives from Colorado
- United States Congressional Delegations from Colorado
- Martis, Kenneth C. (1989). The Historical Atlas of Political Parties in the United States Congress. New York: Macmillan Publishing Company.
- Martis, Kenneth C. (1982). The Historical Atlas of United States Congressional Districts. New York: Macmillan Publishing Company.
- Congressional Biographical Directory of the United States 1774–present