Warren County, KY

ZIP 42104

In ZIP 42104, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Warren County Water District meets every EPA legal limit; 5 contaminants are above health goals, led by lead at 46× California’s Public Health Goal.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Trace Die Cast Inc (93%), mostly chromium.
• Fine particles (PM2.5) average 7.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 111,064 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 42104

• Superfund sites nearbyA
• Factories and industrial sitesB to D
• Oil and gas wellsF
• Parks and nature nearbyC to F
• Air qualityB to C
• Drinking water qualityC to F
• Pesticide useD to F
• Neighborhood health statusC 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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