Clinton County's estimated 2026 population is 42,556 with a growth rate of 0.6% in the past year according to the most recent United States census data. Clinton County is the 58th largest county in Ohio. The 2010 population was 41,922 and has seen a growth of 1.51% since that time.
Data after 2023 is projected based on recent change
Overall: 40.8 years
Female: 41.6 years
Male: 39.7 years
There are 32,482 adults, (7,803 of whom are seniors) in Clinton County.
Female: 21,171 (50.4%)
Male: 20,841 (49.6%)
The racial composition of Clinton County includes 92.12% White, and smaller percentages for Black or African American, other race, Native American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 38,700 | 92.12% |
| Two or more races | 1,702 | 4.05% |
| Black or African American | 784 | 1.87% |
| Other race | 401 | 0.95% |
| Native American | 301 | 0.72% |
| Asian | 108 | 0.26% |
| Native Hawaiian or Pacific Islander | 16 | 0.04% |
Clinton County's average per capita income is $45,972. Household income levels show a median of $70,407. The poverty rate stands at 12.88%.
Name | Median | Mean |
|---|---|---|
| Married Families | $100,266 | $121,527 |
| Families | $88,121 | $107,994 |
| Households | $70,407 | $89,775 |
| Non Families | $39,481 | $48,139 |
Average Income
Median Household Income
Poverty Rate