Knox County, IL

ZIP 61402

In ZIP 61402, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Galesburg has 3 contaminants at or over an EPA legal limit; 16 contaminants are above health goals, led by pfos at 6.7× California’s Public Health Goal.
• Nearest Superfund site: Galesburg/koppers Co., 3.9 miles away.
• Largest share of modeled toxic air from industry: National Coatings Inc (51%), mostly naphthalene.
• Fine particles (PM2.5) average 7.3 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 61402

• Superfund sites nearbyD
• Factories and industrial sitesC
• Oil and gas wellsA
• Parks and nature nearbyD
• Air qualityC
• Drinking water qualityD to F
• Pesticide useF
• Neighborhood health statusD
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsC
• Radiation signalsD

Based on 1 census tract · compiled September 10, 2026 · how each grade works and its sources

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