Macon County, IL

ZIP 62521

In ZIP 62521, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Decatur meets every EPA legal limit; 12 contaminants are above health goals, led by bromodichloromethane at 152× California’s Public Health Goal.
• 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: Adm Decatur Complex (54%), mostly sulfuric acid.
• Fine particles (PM2.5) average 8.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 321,486 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 62521

• Superfund sites nearbyA
• Factories and industrial sitesC to F
• Oil and gas wellsD to F
• Parks and nature nearbyB to C
• Air qualityB to D
• Drinking water qualityB to D
• Pesticide useD to F
• Neighborhood health statusC to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsD to F

Based on 20 census tracts · compiled October 25, 2026 · how each grade works and its sources

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