Adams County's 2026 population is estimated at 63,457, reflecting a -0.51% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Adams County is the 23rd largest county in Illinois. The 2010 population was 67,158 and has grown -5.51% since 2010.
Data after 2023 is projected based on recent change
Overall: 41.4 years
Female: 42 years
Male: 40.7 years
There are 50,176 adults, (13,317 of whom are seniors) in Adams County.
Female: 32,842 (50.7%)
Male: 31,912 (49.3%)
The racial composition of Adams County includes 90.61% White, and smaller percentages for Black or African American, Asian, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 58,671 | 90.61% |
| Two or more races | 3,372 | 5.21% |
| Black or African American | 1,839 | 2.84% |
| Asian | 435 | 0.67% |
| Other race | 349 | 0.54% |
| Native American | 79 | 0.12% |
| Native Hawaiian or Pacific Islander | 9 | 0.01% |
Adams County 's average per capita income is $47,504. Household income levels show a median of $66,220. The poverty rate stands at 12.84%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $102,839 | $124,732 |
| Families | $86,368 | $108,059 |
| Households | $66,220 | $85,695 |
| Non Families | $39,127 | $51,227 |
Average Income
Median Household Income
Poverty Rate
