Arapahoe County's estimated 2026 population is 677,026 with a growth rate of 0.75% in the past year according to the most recent United States census data. Arapahoe County is the 3rd largest county in Colorado. The 2010 population was 575,124 and has seen a growth of 17.72% since that time.
Data after 2023 is projected based on recent change
The racial composition of Arapahoe County includes 61.87% White, 10.84% Black or African American, 6.91% other race, 5.99% Asian, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.
White (61.87%)
Two or more races (13.13%)
Black or African American (10.84%)
Other race (6.91%)
Asian (5.99%)
Native American (0.98%)
Native Hawaiian or Pacific Islander (0.28%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 405,690 | 61.87% |
| Two or more races | 86,083 | 13.13% |
| Black or African American | 71,075 | 10.84% |
| Other race | 45,291 | 6.91% |
| Asian | 39,309 | 5.99% |
| Native American | 6,426 | 0.98% |
| Native Hawaiian or Pacific Islander | 1,835 | 0.28% |
Married
Widowed
Divorced
Separated
Never Married
Arapahoe County's average per capita income is $58,192. Household income levels show a median of $97,215. The poverty rate stands at 8.5%.
Name | Median | Mean |
|---|---|---|
| Married Families | $138,857 | $177,988 |
| Families | $120,608 | $156,838 |
| Households | $97,215 | $132,105 |
| Non Families | $61,463 | $81,264 |
Average Income
Median Household Income
Poverty Rate
