Clinton County's estimated 2026 population is 42,113 with a growth rate of 0.11% in the past year according to the most recent United States census data. Clinton County is the 59th largest county in Ohio. The 2010 population was 41,922 and has seen a growth of 0.46% since that time.
Data after 2023 is projected based on recent change
The racial composition of Clinton County includes 92.56% White, and smaller percentages for Black or African American, other race, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
White (92.56%)
Two or more races (3.34%)
Black or African American (1.87%)
Other race (0.94%)
Asian (0.71%)
Native American (0.56%)
Native Hawaiian or Pacific Islander (0.02%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 38,887 | 92.56% |
| Two or more races | 1,402 | 3.34% |
| Black or African American | 786 | 1.87% |
| Other race | 397 | 0.94% |
| Asian | 298 | 0.71% |
| Native American | 236 | 0.56% |
| Native Hawaiian or Pacific Islander | 8 | 0.02% |
Married
Widowed
Divorced
Separated
Never Married
Clinton County's average per capita income is $43,207. Household income levels show a median of $68,125. The poverty rate stands at 14.77%.
Name | Median | Mean |
|---|---|---|
| Married Families | $94,841 | $116,339 |
| Families | $83,095 | $103,095 |
| Households | $68,125 | $84,570 |
| Non Families | $39,762 | $48,069 |
Average Income
Median Household Income
Poverty Rate