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Union County, Pennsylvania
Union County sits on the West Branch Susquehanna River in central Pennsylvania, with Lewisburg and the adjoining East Buffalo Township forming its commercial and institutional center. Bucknell University, Evangelical Community Hospital and the federal penitentiary in Kelly Township anchor employment, and a roughly $200 million campus expansion adds housing demand, while preserved farmland and river floodplain keep development near Lewisburg and Mifflinburg.
Open the live Union County map →
Union County at a glance
- 42,000Population (2025)
- LewisburgCounty seat
- 316 sq miLand area
- 133 / sq miDensity
- $76,000Median household income
- $240,000Median home value
What the live Union County map shows
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- City Boundaries: 14
- School Boundaries: 4
- Congressional Districts: 1
- Emergency Services: 17
- Flood Zones: 2
- HUD: 8
- House Districts: 3
- Parks & Golf: 23
- Schools: 19
- Senate Districts: 1
- Soils: 128
- Voter Precincts: 27
- Wetlands: 5
- Zip Codes: 24
- Development News: 5
Cities and towns in Union County
Buffalo Township, East Buffalo Township, Gregg Township, Hartleton Borough, Hartley Township, Kelly Township, Lewis Township, Lewisburg Borough, Limestone Township, Mifflinburg Borough, New Berlin Borough, Union Township, West Buffalo Township, White Deer Township.
Neighboring counties
- Snyder County, PA · map
- Northumberland County, PA · map
- Lycoming County, PA · map
- Clinton County, PA · map
- Centre County, PA · map
- Mifflin County, PA · map