Northumberland County, PA

ZIP 17801

In ZIP 17801, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Shamokin Dam Borough meets every EPA legal limit; 9 contaminants are above health goals, led by pfos at 1.2× California’s Public Health Goal.
• Nearest Superfund site: Mw Manufacturing, 4.9 miles away.
• Largest share of modeled toxic air from industry: Arxada LLC (80%), mostly ethylene oxide.
• Fine particles (PM2.5) average 8.2 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 105,057 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 17801

• Superfund sites nearbyA to D
• Factories and industrial sitesA to F
• Oil and gas wellsA to C
• Parks and nature nearbyB to C
• Air qualityC to D
• Drinking water qualityC
• Pesticide useD to F
• Neighborhood health statusC to F
• Past wildfire impactsA
• Past flood impactsC to D
• Noise levelsA to D
• Radiation signalsD to F

Based on 6 census tracts · compiled October 25, 2026 · how each grade works and its sources

Loading the full report, with every source…