St. Clair County, IL

ZIP 62201

In ZIP 62201, 9 of the 12 things we check have at least one part graded D or F.

• Drinking water: Collinsville has 2 contaminants at or over an EPA legal limit; 12 contaminants are above health goals, led by pfoa at 1,471× California’s Public Health Goal.
• Nearest Superfund site: Old American Zinc Plant, 2.6 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Veolia N.A. Inc. (17%), mostly hydrazine.
• Fine particles (PM2.5) average 9.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 324,443 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 62201

• Superfund sites nearbyF
• Factories and industrial sitesD to F
• Oil and gas wellsD to F
• Parks and nature nearbyB to C
• Air qualityD to F
• Drinking water qualityC to F
• Pesticide useD to F
• Neighborhood health statusD to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to F
• Radiation signalsD

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

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