Champaign County's 2026 population is estimated at 39,007, reflecting a 0.13% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Champaign County is the 64th largest county in Ohio. The 2010 population was 40,078 and has grown -2.67% since 2010.
Data after 2023 is projected based on recent change
Overall: 41.7 years
Female: 42.3 years
Male: 41.2 years
There are 30,242 adults, (7,495 of whom are seniors) in Champaign County.
Female: 19,419 (50%)
Male: 19,385 (50%)
The racial composition of Champaign County includes 91.96% White, and smaller percentages for Black or African American, other race, Asian, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 35,685 | 91.96% |
| Two or more races | 1,762 | 4.54% |
| Black or African American | 637 | 1.64% |
| Other race | 449 | 1.16% |
| Asian | 187 | 0.48% |
| Native American | 84 | 0.22% |
Champaign County 's average per capita income is $49,104. Household income levels show a median of $75,556. The poverty rate stands at 7.98%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $101,645 | - |
| Families | $89,765 | $104,838 |
| Households | $75,556 | $89,744 |
| Non Families | $39,663 | $53,973 |
Average Income
Median Household Income
Poverty Rate
