Polk County, IA

ZIP 50322

In ZIP 50322, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Urbandale Water Utility meets every EPA legal limit; 9 contaminants are above health goals, led by bromodichloromethane at 223× California’s Public Health Goal.
• Nearest Superfund site: Railroad Avenue Groundwater Contamination, 4.0 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Quality Manufacturing Corp - Urbandale (65%), mostly chromium.
• Fine particles (PM2.5) average 7.9 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 174,059 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 50322

• Superfund sites nearbyD to F
• Factories and industrial sitesD to F
• Oil and gas wellsA
• Parks and nature nearbyB
• Air qualityC to D
• Drinking water qualityC
• Pesticide useC to F
• Neighborhood health statusA to C
• Past wildfire impactsA
• Past flood impactsF
• Noise levelsA to D
• Radiation signalsF

Based on 11 census tracts · compiled October 25, 2026 · how each grade works and its sources

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