Clinton County's estimated 2026 population is 46,005 with a growth rate of 0.01% in the past year according to the most recent United States census data. Clinton County is the 12th largest county in Iowa. The 2010 population was 49,091 and has seen a growth of -6.29% since that time.
Data after 2023 is projected based on recent change
Overall: 42.4 years
Female: 42.7 years
Male: 42 years
There are 35,686 adults, (9,378 of whom are seniors) in Clinton County.
Female: 23,443 (50.7%)
Male: 22,825 (49.3%)
The racial composition of Clinton County includes 89.46% White, 3.1% Black or African American, and smaller percentages for Asian, other race, Native American and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 41,393 | 89.46% |
| Two or more races | 2,726 | 5.89% |
| Black or African American | 1,434 | 3.1% |
| Asian | 310 | 0.67% |
| Other race | 279 | 0.6% |
| Native American | 126 | 0.27% |
Clinton County's average per capita income is $48,894. Household income levels show a median of $66,981. The poverty rate stands at 13.19%.
Name | Median | Mean |
|---|---|---|
| Married Families | $106,362 | $124,982 |
| Families | $90,942 | $107,939 |
| Households | $66,981 | $88,373 |
| Non Families | $37,332 | $53,177 |
Average Income
Median Household Income
Poverty Rate
