Clinton County, IA

ZIP 52742

In ZIP 52742, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Grand Mound Water Supply meets every EPA legal limit; 8 contaminants are above health goals, led by lead at 41× California’s Public Health Goal.
• Nearest Superfund site: Lawrence Todtz Farm, 3.3 miles away.
• Largest share of modeled toxic air from industry: Equistar Chemicals Clinton Plant (79%), mostly 1,3-butadiene.
• 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 52742

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

Based on 5 census tracts · compiled September 10, 2026 · how each grade works and its sources

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