York County, PA

ZIP 17403

In ZIP 17403, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Dallastown Yoe Water Auth meets every EPA legal limit; 7 contaminants are above health goals, led by bromodichloromethane at 128× California’s Public Health Goal.
• Nearest Superfund site: Old City of York Landfill, 2.2 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Tate Access Floors Inc. (75%), mostly chromium.
• Fine particles (PM2.5) average 8.8 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 17403

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

Based on 23 census tracts · compiled October 25, 2026 · how each grade works and its sources

Loading the full report, with every source…