Jefferson County, IA

ZIP 52635

In ZIP 52635, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Rome Water Supply meets every EPA legal limit; 2 contaminants are above health goals, led by lead at 83× California’s Public Health Goal.
• Nearest Superfund site: Fairfield Coal Gasification Plant, 6.1 miles away.
• Largest share of modeled toxic air from industry: Dexter Laundry Inc (74%), mostly chromium.
• Fine particles (PM2.5) average 7.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 163,010 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 52635

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

Based on 2 census tracts · compiled September 10, 2026 · how each grade works and its sources

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