Bullitt County, KY

ZIP 40109

In ZIP 40109, 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: Tri-City Disposal Co., 4.0 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Monument Chemical Kentucky LLC (50%), mostly ethylene oxide.
• Fine particles (PM2.5) average 7.9 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 13,854 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 40109

• Superfund sites nearbyD to F
• Factories and industrial sitesC to D
• Oil and gas wellsA to D
• Parks and nature nearbyB to C
• Air qualityC to D
• Drinking water qualityC
• Pesticide useA to C
• Neighborhood health statusF
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsC to F

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

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