New Haven County, CT

ZIP 06437

In ZIP 06437, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Regional Water Authority has 3 contaminants at or over an EPA legal limit; 16 contaminants are above health goals, led by pfos at 5.7× California’s Public Health Goal.
• Nearest Superfund site: Durham Meadows, 6.3 miles away.
• Largest share of modeled toxic air from industry: Ametek Specialty Metal Products Div (42%), mostly cobalt compounds.
• Fine particles (PM2.5) average 5.9 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 25,447 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 06437

• Superfund sites nearbyA to C
• Factories and industrial sitesC to D
• Oil and gas wellsA
• Parks and nature nearbyC to D
• Air qualityA
• Drinking water qualityD to F
• Pesticide useC
• Neighborhood health statusC
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA to D

Based on 6 census tracts · compiled September 10, 2026 · how each grade works and its sources

Loading the full report, with every source…