Northumberland County, PA

ZIP 17860

In ZIP 17860, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Aqua Pa Roaring Creek Division meets every EPA legal limit; 10 contaminants are above health goals, led by lead at 42× California’s Public Health Goal.
• Closer to Superfund sites than 54% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Arxada LLC (54%), mostly ethylene oxide.
• Fine particles (PM2.5) average 7.5 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 17860

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

Based on 2 census tracts · compiled September 10, 2026 · how each grade works and its sources

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