Linn County, IA

ZIP 52403

In ZIP 52403, 9 of the 12 things we check have at least one part graded D or F.

• Drinking water: Big Creek Bluffs meets every EPA legal limit; 6 contaminants are above health goals, led by lead at 33× California’s Public Health Goal.
• Nearest Superfund site: Electro-Coatings, Inc., 6.5 miles away.
• Largest share of modeled toxic air from industry: Ingredion Inc (86%), mostly ethylene oxide.
• Fine particles (PM2.5) average 8.0 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 52403

• Superfund sites nearbyA
• Factories and industrial sitesC to F
• Oil and gas wellsA
• Parks and nature nearbyC to F
• Air qualityB to D
• Drinking water qualityD to F
• Pesticide useD to F
• Neighborhood health statusC to D
• Past wildfire impactsA
• Past flood impactsD to F
• Noise levelsA to D
• Radiation signalsC to D

Based on 12 census tracts · compiled September 10, 2026 · how each grade works and its sources

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