Jefferson County, KY

ZIP 40291

In ZIP 40291, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Taylorsville Water Works has 1 contaminant at or over an EPA legal limit; 5 contaminants are above health goals, led by lead at 29× California’s Public Health Goal.
• Nearest Superfund site: A.l. Taylor (valley of Drums), 6.7 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 8.1 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 40291

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

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

Loading the full report, with every source…