Ohio County, KY

ZIP 42320

In ZIP 42320, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Ohio County Water District meets every EPA legal limit; 8 contaminants are above health goals, led by arsenic at 134× California’s Public Health Goal.
• Nearest Superfund site: Brantley Landfill, 7.0 miles away.
• Largest share of modeled toxic air from industry: Big Rivers Electric Corp. Wilson Station (53%), mostly sulfuric acid.
• Fine particles (PM2.5) average 7.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 74,443 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 42320

• Superfund sites nearbyA
• Factories and industrial sitesA to B
• Oil and gas wellsC to F
• Parks and nature nearbyB to C
• Air qualityB to C
• Drinking water qualityB to C
• Pesticide useF
• Neighborhood health statusD to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to C
• Radiation signalsD

Based on 7 census tracts · compiled October 25, 2026 · how each grade works and its sources

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