York County, PA

ZIP 17401

In ZIP 17401, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: York Water Co meets every EPA legal limit; 11 contaminants are above health goals, led by pfos at 1.6× California’s Public Health Goal.
• Nearest Superfund site: East Mount Zion, 4.1 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Envirite Of Pennsylvania Inc (40%), mostly chromium.
• Fine particles (PM2.5) average 9.2 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 253,382 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 17401

• Superfund sites nearbyD
• Factories and industrial sitesF
• Oil and gas wellsA to B
• Parks and nature nearbyC
• Air qualityD to F
• Drinking water qualityC
• Pesticide useC to F
• Neighborhood health statusB to F
• Past wildfire impactsA
• Past flood impactsB
• Noise levelsA to D
• Radiation signalsF

Based on 12 census tracts · compiled October 25, 2026 · how each grade works and its sources

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