Colorado Population 2024 By County. Access the sdo county population and housing lookup for information on county births, deaths, net migration, and general housing charcteristics. Douglas county, colorado's estimated 2024 population is 391,875 with a growth rate of 2.08% in the past year according to the most recent united states census data.
This page features files containing county population totals and components of change for years 2020 to 2023. Discover colorado’s population & how it has changed over time.