Washington County, IA

ZIP 52327

In ZIP 52327, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Washington Water Department has 1 contaminant at or over an EPA legal limit; 7 contaminants are above health goals, led by dibromochloromethane at 27× California’s Public Health Goal.
• Closer to Superfund sites than 74% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Grain Processing Corp (27%), mostly formaldehyde.
• Fine particles (PM2.5) average 7.1 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 286,602 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 52327

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

Based on 7 census tracts · compiled October 25, 2026 · how each grade works and its sources

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