| Place Name | Mifflinburg |
| Place Type | Borough |
| ZIP Code(s) | 17844 |
| County | Union County |
| Area Code(s) | 272,570 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 3,539 |
| Population Growth Rate (2010-19) | -1.55% |
| Majority Ethnicity | White 98.36% |
| Metro/Micro Stats Area | Lewisburg, PA |
| US Congressional District(s) | Pennsylvania 10th |
| State House Districts | 85 |
| State Senate Districts | 23 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 98.36% |
| African American | 0.47% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1.17% |