Clinton County's estimated 2026 population is 21,630 with a growth rate of -0.14% in the past year according to the most recent United States census data. Clinton County is the 53rd largest county in Missouri. The 2010 population was 20,740 and has seen a growth of 4.29% since that time.
Data after 2023 is projected based on recent change
Overall: 42 years
Female: 42.1 years
Male: 41.8 years
There are 16,451 adults, (4,049 of whom are seniors) in Clinton County.
Female: 10,621 (49.6%)
Male: 10,793 (50.4%)
The racial composition of Clinton County includes 92.75% White, and smaller percentages for other race, Black or African American, Asian, Native American and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 19,862 | 92.75% |
| Two or more races | 1,107 | 5.17% |
| Other race | 207 | 0.97% |
| Black or African American | 178 | 0.83% |
| Asian | 35 | 0.16% |
| Native American | 25 | 0.12% |
Clinton County's average per capita income is $48,010. Household income levels show a median of $70,627. The poverty rate stands at 12.3%.
Name | Median | Mean |
|---|---|---|
| Married Families | $99,025 | - |
| Families | $89,312 | $109,426 |
| Households | $70,627 | $89,325 |
| Non Families | $42,764 | $47,307 |
Average Income
Median Household Income
Poverty Rate