Adams County's 2026 population is estimated at 557,565, reflecting a 1.33% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Adams County is the 5th largest county in Colorado. The 2010 population was 443,692 and has grown 25.66% since 2010.
Data after 2023 is projected based on recent change
Overall: 34.8 years
Female: 35.2 years
Male: 34.4 years
There are 398,386 adults, (59,925 of whom are seniors) in Adams County.
Female: 260,826 (49.2%)
Male: 269,399 (50.8%)
The racial composition of Adams County includes 54.97% White, 12.97% other race, 3.93% Asian, 3.61% Black or African American, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 291,452 | 54.97% |
| Two or more races | 120,236 | 22.68% |
| Other race | 68,786 | 12.97% |
| Asian | 20,850 | 3.93% |
| Black or African American | 19,155 | 3.61% |
| Native American | 8,817 | 1.66% |
| Native Hawaiian or Pacific Islander | 929 | 0.18% |
Adams County 's average per capita income is $56,814. Household income levels show a median of $94,571. The poverty rate stands at 9.81%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $125,404 | $146,588 |
| Families | $109,673 | $130,718 |
| Households | $94,571 | $116,985 |
| Non Families | $61,448 | $78,196 |
Average Income
Median Household Income
Poverty Rate
