| Name | Mifflin County |
| State | Pennsylvania |
| FIPS Code | 42087 |
| County Seat | Lewistown |
| Timezone | Eastern Standard Time (EST) |
| Population (2022) | 46,694 |
| Population Growth Rate(2000-2022) | -1.15% |
| Majority Ethnicity | White 98.74% |
| Public School Majority Ethnicity | White 90% |
| Partisan Voting Index | Strongly Republican:+29 |
| Unemployment Rate (January 2025) | 3.1% |
| Area Code(s) | 223 / 717 / 582 / 814 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 98.74% |
| African American | 0.64% |
| Hispanic | 0.18% |
| Asian | 0.32% |
| Native American | 0.06% |
| Hawaiin/Pacific Islander | 0.06% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 90.37% |
| African American | 2.37% |
| Hispanic | 4.6% |
| Asian | 0.45% |
| Native American | 0.17% |
| Hawaiin/Pacific Islander | 0.11% |