Lehigh County, PA

ZIP 18018

In ZIP 18018, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: City Of Bethlehem meets every EPA legal limit; 6 contaminants are above health goals, led by chloroform at 92× California’s Public Health Goal.
• Nearest Superfund site: Hellertown Manufacturing Co., 4.4 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: B. Braun Medical Inc Manufacturing Div (88%), mostly ethylene oxide.
• Fine particles (PM2.5) average 8.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 91,749 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 18018

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

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

Loading the full report, with every source…