Colorado Population 2024 Estimate 2024. The state demography office (sdo) within the colorado department of local affairs has prepared the july 1, 2023 draft population estimates. The primary source for colorado population and demographic information.
The most populous counties in colorado are el paso county with 744,215, denver county at 716,577, arapahoe county with. Census bureau 2023 county population estimates, march 2024 3/20/2024.