Knox County, IL

ZIP 61436

In ZIP 61436, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Knoxville has 2 contaminants at or over an EPA legal limit; 11 contaminants are above health goals, led by bromodichloromethane at 200× California’s Public Health Goal.
• Nearest Superfund site: Galesburg/koppers Co., 7.0 miles away.
• Largest share of modeled toxic air from industry: Pacific Ethanol Pekin, LLC (28%), mostly acrolein.
• Fine particles (PM2.5) average 7.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 366,884 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 61436

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

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

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