Randolph County, IL

ZIP 62286

In ZIP 62286, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Sparta has 1 contaminant at or over an EPA legal limit; 14 contaminants are above health goals, led by di(2-ethylhexyl) phthalate at 225× California’s Public Health Goal.
• Closer to Superfund sites than 54% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Prairie State Generating Co (52%), mostly chromium compounds.
• Fine particles (PM2.5) average 7.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 240,073 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 62286

• Superfund sites nearbyA to C
• Factories and industrial sitesB
• Oil and gas wellsA to F
• Parks and nature nearbyC to D
• Air qualityB to C
• Drinking water qualityC to F
• Pesticide useF
• Neighborhood health statusD to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsD

Based on 5 census tracts · compiled September 10, 2026 · how each grade works and its sources

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