Jefferson County, KY

ZIP 40220

In ZIP 40220, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Louisville Water Company has 3 contaminants at or over an EPA legal limit; 15 contaminants are above health goals, led by lead at 21× California’s Public Health Goal.
• Nearest Superfund site: Red Penn Sanitation Co. Landfill, 8.7 miles away.
• Largest share of modeled toxic air from industry: Monument Chemical Kentucky LLC (36%), mostly chromium.
• Fine particles (PM2.5) average 9.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 8,583 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 40220

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

Based on 12 census tracts · compiled September 10, 2026 · how each grade works and its sources

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