Among 64 cached counties in Colorado with a median household income estimate (ACS 5-Year vintage 2024, variable B19013_001E), Douglas County, Colorado is highest at $149,594 and Costilla County, Colorado is lowest at $36,861.

Colorado statewide median household income is $95,470 in the same vintage.

Douglas County, Colorado has a population of 377,150 (B01003_001E). Costilla County, Colorado has a population of 3,607.

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates, vintage 2024 (period 2020–2024). Dataset acs/acs5. Variables: B01003_001E (total population), B19013_001E (median household income, 2024 inflation-adjusted dollars), B19113_001E (median family income, 2024 inflation-adjusted dollars), B19301_001E (per capita income, 2024 inflation-adjusted dollars). census.gov/data/developers. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.