Knox County, IL

ZIP 61448

In ZIP 61448, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Aqua Illinois-Oak Run has 1 contaminant at or over an EPA legal limit; 9 contaminants are above health goals, led by lead at 40× California’s Public Health Goal.
• Nearest Superfund site: Galesburg/koppers Co., 7.0 miles away.
• Largest share of modeled toxic air from industry: National Coatings Inc (78%), mostly naphthalene.
• Fine particles (PM2.5) average 6.9 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 61448

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

Based on 4 census tracts · compiled September 10, 2026 · how each grade works and its sources

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