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Northumberland County, Pennsylvania
Northumberland County straddles the Susquehanna River's two branches in central Pennsylvania, with Sunbury as county seat, Milton along I-80, and the former coal boroughs of Shamokin and Mount Carmel to the south. Food processing, distribution, and industrial site work in Point Township drive the nonresidential market, while floodplain, abandoned mine land in the southern coal belt, and rail access determine where projects are feasible.
Open the live Northumberland County map →
Northumberland County at a glance
- 90,000Population (2025)
- SunburyCounty seat
- 458 sq miLand area
- 197 / sq miDensity
- $61,000Median household income
- $160,000Median home value
What the live Northumberland County map shows
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- City Boundaries: 36
- School Boundaries: 8
- Congressional Districts: 1
- Emergency Services: 76
- Flood Zones: 2
- HUD: 17
- House Districts: 2
- Opportunity Zones: 2
- Parks & Golf: 39
- Schools: 33
- Senate Districts: 1
- Soils: 139
- Voter Precincts: 75
- Wetlands: 5
- Zip Codes: 39
- Development News: 1
Cities and towns in Northumberland County
Coal Township, Delaware Township, East Cameron Township, East Chillisquaque Township, Herndon Borough, Jackson Township, Jordan Township, Kulpmont Borough, Lewis Township, Little Mahanoy Township, Lower Augusta Township, Lower Mahanoy Township, Marion Heights Borough, McEwensville Borough, Milton Borough, Mount Carmel Borough, Mt Carmel Township, Northumberland Borough, Point Township, Ralpho Township, Riverside Borough, Rockefeller Township, Rush Township, Shamokin, Shamokin Township, Snydertown Borough, Sunbury, Turbot Township, Turbotville Borough, Upper Augusta Township, Upper Mahanoy Township, Washington Township, Watsontown Borough, West Cameron Township, West Chillisquaque Township, Zerbe Township.
Neighboring counties
- Montour County, PA · map
- Columbia County, PA · map
- Union County, PA · map
- Snyder County, PA · map
- Schuylkill County, PA · map
- Dauphin County, PA · map
- Lycoming County, PA · map
- Juniata County, PA · map
- Perry County, PA · map