List of Colorado census-designated places by population

This is a population history of the 210 census-designated places in the US state of Colorado since the 2000 United States census. The United States Census Bureau defines certain unincorporated communities as census-designated places (CDPs) for enumeration in each decennial census. The Census Bureau defined 85 CDPs in Colorado for the 2000 Census, 187 CDPs for the 2010 Census, and 210 CDPs for the 2020 Census.

At the 2020 United States census, the Highlands Ranch CDP was the most populous CDP in Colorado with 103,444 residents. The Fulford CDP lost both of its residents before the 2020 Census.