Since Colorado became a U.S. state in 1876, it has sent congressional delegations to the United States Senate and United States House of Representatives. Each state elects two senators to serve for six years, and members of the House to two-year terms. Before becoming a state, the Colorado Territory elected a non-voting delegate at-large to Congress from 1861 to 1876. These are tables of congressional delegations from Colorado to the United States Senate and the United States House of Representatives. Current delegation Colorado's current congressional delegation to the consists of two senators, both of whom are Democrats, and eight representatives comprising five Democrats and three Republicans. United States Senate United States House of Representatives The State of Colorado gained an beginning in 2023. The current dean of the Colorado delegation is Representative Diana DeGette of the , having served in the House since 1997. United States Senate United States House of Representatives 1861–1876: 1 non-voting delegate Starting on August 19, 1861, the Territory of Colorado sent a non-voting delegate to the House. 1876–1893: 1 seat Following statehood on August 1, 1876, the State of Colorado was granted one seat in the House. 1893–1903: 2 seats Following the 1890 census, Colorado was apportioned with two seats. 1903–1913: 3 seats Following the 1900 census, Colorado was apportioned with three seats. 1913–1973: 4 seats Following the 1910 census, Colorado was apportioned with four seats. 1973–1983: 5 seats Following the 1970 census, Colorado was apportioned with five seats. 1983–2003: 6 seats Following the 1980 census, Colorado was apportioned with six seats. 2003–2023: 7 seats Following the 2000 census, Colorado was apportioned with seven seats. 2023–present: 8 seats Following the 2020 census, Colorado was apportioned with eight seats. Key See also List of United States congressional districts Colorado's congressional districts Political party strength in Colorado References Colorado Politics of Colorado Congressional delegations