Colorado's at-large congressional district

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.

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.

Colorado used four congressional districts beginning with the U.S. election of 1914.