Fairfield County, CT

ZIP 06804

In ZIP 06804, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Aquarion-Butternut meets every EPA legal limit; 8 contaminants are above health goals, led by lead at 133× California’s Public Health Goal.
• Closer to Superfund sites than 91% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Schaeffler Aerospace USA Corp (63%), mostly 1-bromopropane.
• Fine particles (PM2.5) average 6.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 7,578 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 06804

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

Based on 5 census tracts · compiled October 25, 2026 · how each grade works and its sources

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