Polk County, IA

ZIP 50314

In ZIP 50314, 10 of the 12 things we check have at least one part graded D or F.

• Drinking water: Des Moines Water Works meets every EPA legal limit; 18 contaminants are above health goals, led by lead at 42× California’s Public Health Goal.
• Nearest Superfund site: Des Moines TCE, 1.9 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Quality Manufacturing Corp - Urbandale (67%), mostly chromium.
• Fine particles (PM2.5) average 8.0 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 50314

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

Based on 7 census tracts · compiled September 10, 2026 · how each grade works and its sources

Loading the full report, with every source…