Cook County, IL

ZIP 60621

In ZIP 60621, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Chicago meets every EPA legal limit; 7 contaminants are above health goals, led by bromodichloromethane at 133× California’s Public Health Goal.
• Nearest Superfund site: Acme Steel Coke Plant, 6.8 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: W R Grace & Co (86%), mostly cobalt compounds.
• Fine particles (PM2.5) average 9.0 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 60621

• Superfund sites nearbyF
• Factories and industrial sitesD to F
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityD to F
• Drinking water qualityC
• Pesticide useA
• Neighborhood health statusC to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to F
• Radiation signalsC

Based on 17 census tracts · compiled October 25, 2026 · how each grade works and its sources

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