Arapahoe County, Colorado

Arapahoe County, Colorado, had an estimated population of 673,820 in 2025 across 2,067 km². The figures below come from the US Census Bureau's population estimates and the American Community Survey, each shown with its own vintage and its rank among Colorado's counties and nationally.

Population: 673,820; 2025 estimate
Area: 2,067 km²
Density: 326; per km²
Median income: $101,087; household, ACS 2024
Median age: 37.3; years, ACS 2024

How Colorado's counties spread

Amenities & Infrastructure

Indicator	Value	In Colorado	In the US
Households with Broadband2024	94.7%	8 / 64	89 / 3,144
Median Gross Rent2024	$1,891	9 / 64	75 / 3,137
Median Home Value2024	$561,200	20 / 64	97 / 3,139
Owner-Occupied Homes2024	64.7%	56 / 64	2,687 / 3,144
Vacant Homes2024	4.5%	59 / 64	3,026 / 3,144

Demography

Indicator	Value	In Colorado	In the US
Aged 65 and Over2024	14.4%	58 / 64	2,870 / 3,144
American Indian & Alaska Native2024	0.3%	30 / 64	922 / 3,144
Asian, non-Hispanic2024	6.0%	2 / 64	132 / 3,144
Average Household Size2024people	2.6	8 / 64	831 / 3,144
Black, non-Hispanic2024	10.5%	1 / 64	729 / 3,144
Foreign-Born2024	16.5%	1 / 64	166 / 3,144
Hispanic or Latino2024	21.7%	22 / 64	392 / 3,144
Median Age2024years	37.3	57 / 64	2,617 / 3,144
Sex Ratio2024per 1,000 males	1,003	9 / 64	1,476 / 3,144
Speak a Language Other Than English2024	23.4%	9 / 64	304 / 3,144
Under 182024	22.6%	16 / 64	1,221 / 3,144
Veterans2024	6.7%	37 / 64	1,897 / 3,144
White, non-Hispanic2024	55.2%	51 / 64	2,569 / 3,144

Economy

Indicator	Value	In Colorado	In the US
Below Poverty Line2024	8.6%	42 / 64	2,650 / 3,144
Households on SNAP2024	7.7%	43 / 64	2,382 / 3,144
Income Inequality2024index	0.453	26 / 64	1,284 / 3,144
Median Household Income2024	$101,087	11 / 64	162 / 3,143
Per Capita Income2024	$53,774	16 / 64	146 / 3,144
Unemployment Rate2024	5.0%	14 / 64	1,129 / 3,144

Education

Indicator	Value	In Colorado	In the US
Bachelor's Degree or Higher2024	46.5%	22 / 64	140 / 3,144
High School or Higher2024	91.9%	35 / 64	1,094 / 3,144

Health Coverage

Indicator	Value	In Colorado	In the US
No Health Insurance2024	9.3%	26 / 64	1,197 / 3,144
With a Disability2024	10.9%	43 / 64	2,895 / 3,144

Population & Density

Indicator	Value	In Colorado	In the US
Population2025	673,820	3 / 64	105 / 3,144
Population Density2025/km²	326	3 / 64	186 / 3,144

Work & Commute

Indicator	Value	In Colorado	In the US
Commute by Public Transit2024	2.5%	8 / 64	133 / 3,144
Households with No Vehicle2024	5.3%	18 / 64	1,603 / 3,144
Mean Commute Time2024minutes	27.1	12 / 64	919 / 3,143
Work from Home2024	21.0%	18 / 64	114 / 3,144

Other counties of Colorado

Compare Arapahoe County against every other county on a map, add layers and run a scatter — open the atlas. Sources and vintages for every figure on this page are listed under datasets, or browse all 3,144 counties.