| Name | Jefferson County |
| State | Pennsylvania |
| FIPS Code | 42065 |
| County Seat | Brookville |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2024) | 43,625 |
| Population Growth Rate(2020-2024) | -1.99% |
| Majority Ethnicity | White 98.22% |
| Public School Majority Ethnicity | White 96% |
| Partisan Voting Index | Strongly Republican:+30 |
| Unemployment Rate (May 2026) | 5.4% |
| Sales Tax Rate (2025) | 6% |
| Area Code(s) | 582 / 814 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 98.22% |
| African American | 0.48% |
| Hispanic | 1% |
| Asian | 0.25% |
| Native American | 0.05% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 96.15% |
| African American | 0.42% |
| Hispanic | 1.32% |
| Asian | 0.3% |
| Native American | 0.08% |
| Hawaiin/Pacific Islander | 0.02% |