Cook County, IL

ZIP 60438

In ZIP 60438, 9 of the 12 things we check have at least one part graded D or F.

• Drinking water: Dyer Water Department has 1 contaminant at or over an EPA legal limit; 9 contaminants are above health goals, led by lead at 46× California’s Public Health Goal.
• Nearest Superfund site: Estech General Chemical Company, 6.0 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: W R Grace & Co (39%), mostly chromium compounds.
• Fine particles (PM2.5) average 8.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 16,702 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 60438

• Superfund sites nearbyD to F
• Factories and industrial sitesF
• Oil and gas wellsA to D
• Parks and nature nearbyD to F
• Air qualityF
• Drinking water qualityD to F
• Pesticide useB to C
• Neighborhood health statusB to D
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsD

Based on 8 census tracts · compiled September 10, 2026 · how each grade works and its sources

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