Somerset County, NJ

ZIP 07920

In ZIP 07920, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Nj American Water - Raritan has 1 contaminant at or over an EPA legal limit; 24 contaminants are above health goals, led by pfos at 3.9× California’s Public Health Goal.
• Nearest Superfund site: American Cyanamid Co, 3.4 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Steris Isomedix Services (19%), mostly ethylene oxide.
• Fine particles (PM2.5) average 6.9 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 19,614 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 07920

• Superfund sites nearbyC to F
• Factories and industrial sitesB to D
• Oil and gas wellsA
• Parks and nature nearbyB to D
• Air qualityB
• Drinking water qualityF
• Pesticide useC to D
• Neighborhood health statusA to B
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA
• Radiation signalsD

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

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