Clarke County's 2026 population is estimated at 9,310, reflecting a -1.14% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Clarke County is the 78th largest county in Iowa. The 2010 population was 9,321 and has grown -0.12% since 2010.
Data after 2023 is projected based on recent change
Overall: 37.9 years
Female: 39.8 years
Male: 36.9 years
There are 7,192 adults, (1,924 of whom are seniors) in Clarke County.
Female: 4,739 (49%)
Male: 4,923 (51%)
The racial composition of Clarke County includes 80.53% White, 10.58% other race, and smaller percentages for Native American, Asian, Black or African American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 7,781 | 80.53% |
| Other race | 1,022 | 10.58% |
| Two or more races | 703 | 7.28% |
| Native American | 97 | 1% |
| Asian | 54 | 0.56% |
| Black or African American | 5 | 0.05% |
Clarke County 's average per capita income is $45,714. Household income levels show a median of $71,641. The poverty rate stands at 9.72%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $99,934 | - |
| Families | $84,073 | $110,412 |
| Households | $71,641 | $95,019 |
| Non Families | $38,750 | $58,944 |
Average Income
Median Household Income
Poverty Rate
