Linn County, IA

ZIP 52328

In ZIP 52328, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Hiawatha Water Dept meets every EPA legal limit; 8 contaminants are above health goals, led by bromodichloromethane at 72× California’s Public Health Goal.
• Nearest Superfund site: Electro-Coatings, Inc., 5.6 miles away.
• Largest share of modeled toxic air from industry: Ingredion Inc (43%), mostly ethylene oxide.
• Fine particles (PM2.5) average 7.1 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 294,543 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 52328

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

Based on 2 census tracts · compiled October 25, 2026 · how each grade works and its sources

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