Jefferson County, KY

ZIP 40218

In ZIP 40218, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Louisville Water Company meets every EPA legal limit; 6 contaminants are above health goals, led by pfoa at 414× California’s Public Health Goal.
• Nearest Superfund site: A.l. Taylor (valley of Drums), 7.6 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Monument Chemical Kentucky LLC (39%), mostly chromium.
• Fine particles (PM2.5) average 9.3 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 40218

• Superfund sites nearbyA
• Factories and industrial sitesC to D
• Oil and gas wellsA to B
• Parks and nature nearbyC to D
• Air qualityD to F
• Drinking water qualityC
• Pesticide useA to C
• Neighborhood health statusC to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsF

Based on 11 census tracts · compiled October 25, 2026 · how each grade works and its sources

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