Jefferson County, KY

ZIP 40206

In ZIP 40206, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Indiana American Water - S. Indiana meets every EPA legal limit; 11 contaminants are above health goals, led by pfos at 3.3× 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 (34%), mostly chromium.
• Fine particles (PM2.5) average 9.2 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 40206

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

Based on 11 census tracts · compiled September 10, 2026 · how each grade works and its sources

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