Henry County, IA

ZIP 52644

In ZIP 52644, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Winfield Muni Water Dept meets every EPA legal limit; 8 contaminants are above health goals, led by bromodichloromethane at 66× California’s Public Health Goal.
• Nearest Superfund site: Iowa Army Ammunition Plant, 9.0 miles away.
• Largest share of modeled toxic air from industry: Big River Resources West Burlington LLC (70%), mostly acrolein.
• Fine particles (PM2.5) average 6.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 204,688 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 52644

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

Based on 3 census tracts · compiled October 25, 2026 · how each grade works and its sources

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