Johnson County, IA
ZIP 52240
In ZIP 52240, 8 of the 12 things we check have at least one part graded D or F.
- Drinking water: Mcbride Pointe Third Master Maintenance has 1 contaminant at or over an EPA legal limit; 1 contaminant is above health goals, led by arsenic at 3,787× California’s Public Health Goal.
- Closer to Superfund sites than 96% of U.S. neighborhoods, with no listed site within 10 miles of its center.
- Largest share of modeled toxic air from industry: Adm Corn Processing (31%), mostly ethylene oxide.
- Fine particles (PM2.5) average 7.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
- About 229,923 kg of agricultural pesticides are applied in the county each year.
Grades for ZIP 52240
- Superfund sites nearbyC to F
- Factories and industrial sitesC to D
- Oil and gas wellsA
- Parks and nature nearbyC to F
- Air qualityB to C
- Drinking water qualityA to F
- Pesticide useD to F
- Neighborhood health statusA to C
- Past wildfire impactsA
- Past flood impactsD to F
- Noise levelsA to D
- Radiation signalsD to F
Based on 20 census tracts · compiled September 10, 2026 · how each grade works and its sources
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