Fairfield County, CT

ZIP 06611

In ZIP 06611, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: Aquarion-Eastern Fairfield County meets every EPA legal limit; 10 contaminants are above health goals, led by pfos at 2.6× California’s Public Health Goal.
• Nearest Superfund site: Raymark Industries, Inc., 4.6 miles away.
• Largest share of modeled toxic air from industry: Ametek Specialty Metal Products Div (32%), mostly cobalt compounds.
• Fine particles (PM2.5) average 6.7 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 06611

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

Based on 8 census tracts · compiled October 25, 2026 · how each grade works and its sources

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