Cook County, IL

ZIP 60526

In ZIP 60526, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: Hinsdale meets every EPA legal limit; 9 contaminants are above health goals, led by arsenic at 470× California’s Public Health Goal.
• Nearest Superfund site: Lenz Oil Service, Inc., 8.5 miles away.
• Largest share of modeled toxic air from industry: W R Grace & Co (67%), mostly cobalt compounds.
• Fine particles (PM2.5) average 9.1 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 60526

• Superfund sites nearbyA to C
• Factories and industrial sitesF
• Oil and gas wellsA
• Parks and nature nearbyB to C
• Air qualityD to F
• Drinking water qualityC
• Pesticide useA to B
• Neighborhood health statusA to B
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsC

Based on 5 census tracts · compiled October 25, 2026 · how each grade works and its sources

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