Clinton County, IA

ZIP 52774

In ZIP 52774, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Welton Water Supply has 1 contaminant at or over an EPA legal limit; 6 contaminants are above health goals, led by chloroform at 14× California’s Public Health Goal.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Adm Corn Processing (42%), mostly chromium.
• Fine particles (PM2.5) average 7.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 363,077 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 52774

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

Based on 1 census tract · compiled October 25, 2026 · how each grade works and its sources

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