Clarion County's 2026 population is estimated at 36,637, reflecting a -0.3% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Clarion County is the 57th largest county in Pennsylvania. The 2010 population was 39,926 and has grown -8.24% since 2010.
Data after 2023 is projected based on recent change
Overall: 41.7 years
Female: 42.1 years
Male: 41.5 years
There are 30,121 adults, (7,658 of whom are seniors) in Clarion County.
Female: 18,759 (50.5%)
Male: 18,420 (49.5%)
The racial composition of Clarion County includes 94.39% White, and smaller percentages for Two or more races, Black or African American, Asian, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 35,093 | 94.39% |
| Two or more races | 1,045 | 2.81% |
| Black or African American | 625 | 1.68% |
| Asian | 255 | 0.69% |
| Other race | 155 | 0.42% |
| Native American | 5 | 0.01% |
| Native Hawaiian or Pacific Islander | 1 | 0% |
Clarion County 's average per capita income is $43,979. Household income levels show a median of $62,649. The poverty rate stands at 13.11%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $89,628 | - |
| Families | $80,938 | $96,204 |
| Households | $62,649 | $78,991 |
| Non Families | $32,387 | $43,992 |
Average Income
Median Household Income
Poverty Rate