Oldham County, KY

ZIP 40059

In ZIP 40059, 4 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.
• 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: O'Neal Manufacturing Services (30%), mostly chromium.
• Fine particles (PM2.5) average 8.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 22,082 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 40059

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

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

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