Warren County's 2026 population is estimated at 36,775, reflecting a -0.81% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Warren County is the 56th largest county in Pennsylvania. The 2010 population was 41,770 and has grown -11.96% since 2010.
Data after 2023 is projected based on recent change
Overall: 47.1 years
Female: 48.5 years
Male: 45.7 years
There are 30,473 adults, (9,384 of whom are seniors) in Warren County.
Female: 18,766 (49.5%)
Male: 19,154 (50.5%)
The racial composition of Warren County includes 94.37% White, and smaller percentages for Black or African American, other race, Asian, Native Hawaiian or Pacific Islander, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 35,784 | 94.37% |
| Two or more races | 1,397 | 3.68% |
| Black or African American | 314 | 0.83% |
| Other race | 191 | 0.5% |
| Asian | 166 | 0.44% |
| Native Hawaiian or Pacific Islander | 45 | 0.12% |
| Native American | 23 | 0.06% |
Warren County 's average per capita income is $42,754. Household income levels show a median of $60,480. The poverty rate stands at 10.81%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $84,756 | $100,876 |
| Families | $75,862 | $91,219 |
| Households | $60,480 | $76,293 |
| Non Families | $35,094 | $47,233 |
Average Income
Median Household Income
Poverty Rate