Cook County, IL

ZIP 60422

In ZIP 60422, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Richton Park meets every EPA legal limit; 10 contaminants are above health goals, led by lithium at 6.2× the USGS health-based screening level.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: W R Grace & Co (45%), mostly cobalt 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 60422

• Superfund sites nearbyA
• Factories and industrial sitesD
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityF
• Drinking water qualityC
• Pesticide useA to B
• Neighborhood health statusB to C
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsD

Based on 4 census tracts · compiled October 25, 2026 · how each grade works and its sources

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