Mifflinburg borough, Pennsylvania
Official LSAD Designation: Mifflinburg borough • Census GEOID: 4249288
• Union County
Mifflinburg borough is an incorporated borough in Union County, Pennsylvania. According to official records from the Census (2025), Mifflinburg borough had an estimated population of 3,436 residents. Official Census Bureau geographic records classify this community under LSAD designation Mifflinburg borough (GEOID 4249288).
Local Government Administration U.S. Census Bureau GMAF
Borough Of Mifflinburg
Municipal
Official Title:
Borough Manager
Address:
120 N 3RD ST, MIFFLINBURG PA 17844-1134
County Of Union
County
Official Title:
Chairperson
Address:
155 N 15TH ST, LEWISBURG PA 17837-8822
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 3,436 | 2025 |
| Median Household Income | $67,391 | 2020-2024 |
| Median Home Value | $209,500 | 2020-2024 |
| Land Area | 1.80 sq mi | Gazetteer (2026) |
| Civic & Public Services | Hospitals, Libraries, Colleges | CMS / IMLS / IPEDS |
| Schools & Districts | NCES Directory Listings | Provided by k12guides.com |
| Nearby Airports | Landing Facilities | Provided by airport-data.com |
| Climate & Weather | NOAA 30-Year Normals | 1991–2020 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).