| Name | Northumberland County |
| State | Pennsylvania |
| FIPS Code | 42097 |
| County Seat | Sunbury |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2024) | 90,131 |
| Population Growth Rate(2020-2024) | -1.68% |
| Majority Ethnicity | White 91.81% |
| Public School Majority Ethnicity | White 80% |
| Partisan Voting Index | Strongly Republican:+21 |
| Unemployment Rate (May 2026) | 5.4% |
| Sales Tax Rate (2025) | 6% |
| Area Code(s) | 272 / 570 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 91.81% |
| African American | 2.74% |
| Hispanic | 4.89% |
| Asian | 0.47% |
| Native American | 0.07% |
| Hawaiin/Pacific Islander | 0.01% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 79.79% |
| African American | 3.49% |
| Hispanic | 11.54% |
| Asian | 0.39% |
| Native American | 0.21% |
| Hawaiin/Pacific Islander | 0.02% |