Butler County's 2026 population is estimated at 201,038, reflecting a 0.43% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Butler County is the 19th largest county in Pennsylvania. The 2010 population was 184,085 and has grown 9.21% since 2010.
Overall: 43.4 years
Female: 44.4 years
Male: 42.6 years
There are 159,274 adults, (40,695 of whom are seniors) in Butler County.
Female: 98,985 (50.2%)
Male: 98,269 (49.8%)
The racial composition of Butler County includes 92.78% White, and smaller percentages for Asian, Black or African American, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 183,018 | 92.78% |
| Two or more races | 7,409 | 3.76% |
| Asian | 2,846 | 1.44% |
| Black or African American | 2,113 | 1.07% |
| Other race | 1,609 | 0.82% |
| Native American | 223 | 0.11% |
| Native Hawaiian or Pacific Islander | 36 | 0.02% |
Butler County 's average per capita income is $58,936. Household income levels show a median of $89,843. The poverty rate stands at 8.15%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $127,214 | $155,936 |
| Families | $116,152 | $143,182 |
| Households | $89,843 | $116,887 |
| Non Families | $46,809 | $66,280 |
Average Income
Median Household Income
Poverty Rate