Colorado's 1st Congressional District
Colorado · CO-01
Colorado's 1st Congressional District is one of 8 U.S. House districts in Colorado, represented in Congress by Diana DeGette (Democrat). It is home to roughly 720,932 people, with a median age of 35.2. The population is about 55% White. The median household income is $92,382, and 56% of adults 25 and older hold a bachelor’s degree or higher. In the 2024 presidential election it voted safely Democratic (D+56).
Representative
Current U.S. House member (source: house.gov).
Geography
CO-01 is shown in red. Click a neighboring district to open it, or zoom out to explore the country.
By the Polsby-Popper measure, CO-01 is very irregular in shape compared with other districts.
Presidential results
Two-party presidential vote by district (source: The Downballot).
Who lives here
U.S. Census Bureau, American Community Survey (5-year estimates).
Economy & education
U.S. Census Bureau, American Community Survey (5-year estimates).