Adams County's 2026 population is estimated at 3,712, reflecting a 1.45% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Adams County is the 99th largest county in Iowa. The 2010 population was 4,023 and has grown -7.73% since 2010.
Data after 2023 is projected based on recent change
Overall: 46.3 years
Female: 47.3 years
Male: 45.2 years
There are 2,816 adults, (876 of whom are seniors) in Adams County.
Female: 1,808 (49.9%)
Male: 1,814 (50.1%)
The racial composition of Adams County includes 94.81% White, and smaller percentages for Black or African American, Native American, other race and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 3,434 | 94.81% |
| Two or more races | 164 | 4.53% |
| Black or African American | 11 | 0.3% |
| Native American | 8 | 0.22% |
| Other race | 5 | 0.14% |
Adams County 's average per capita income is $48,824. Household income levels show a median of $71,875. The poverty rate stands at 9.09%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $101,250 | - |
| Families | $94,167 | $110,679 |
| Households | $71,875 | $103,589 |
| Non Families | $34,605 | $88,668 |
Average Income
Median Household Income
Poverty Rate
