Oldham County, KY

ZIP 40056

In ZIP 40056, 2 of the 12 things we check have at least one part graded D or F.

• Drinking water: North Shelby Water District meets every EPA legal limit; 5 contaminants are above health goals, led by pfoa at 314× California’s Public Health Goal.
• Nearest Superfund site: Red Penn Sanitation Co. Landfill, 3.2 miles away.
• Largest share of modeled toxic air from industry: O'Neal Manufacturing Services (29%), mostly chromium.
• Fine particles (PM2.5) average 7.4 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 40056

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

Based on 2 census tracts · compiled October 25, 2026 · how each grade works and its sources

Loading the full report, with every source…