Mercer County, NJ

ZIP 08629

In ZIP 08629, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Trenton Water Works meets every EPA legal limit; 11 contaminants are above health goals, led by trichloroacetic acid at 166× California’s Public Health Goal.
• Nearest Superfund site: Roebling Steel Co., 6.4 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Linde Gas & Equipment Inc. (94%), mostly ethylene oxide.
• Fine particles (PM2.5) average 7.9 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 26,104 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 08629

• Superfund sites nearbyA to D
• Factories and industrial sitesC to D
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityC to D
• Drinking water qualityD
• Pesticide useB to C
• Neighborhood health statusA to D
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA to D
• Radiation signalsC

Based on 6 census tracts · compiled October 25, 2026 · how each grade works and its sources

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