Johnson County, KS

ZIP 66212

In ZIP 66212, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Water District 1 Of Johnson Co meets every EPA legal limit; 14 contaminants are above health goals, led by lead at 12× California’s Public Health Goal.
• Nearest Superfund site: Doepke Disposal (holliday), 6.9 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Harcros Chemicals Inc (79%), mostly ethylene oxide.
• Fine particles (PM2.5) average 8.9 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 49,881 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 66212

• Superfund sites nearbyA to C
• Factories and industrial sitesD
• Oil and gas wellsD to F
• Parks and nature nearbyD to F
• Air qualityD to F
• Drinking water qualityD
• Pesticide useC to D
• Neighborhood health statusB to C
• Past wildfire impactsA
• Past flood impactsB
• 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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