Cerro Gordo County, IA

ZIP 50467

In ZIP 50467, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Nora Springs Water Supply meets every EPA legal limit; 10 contaminants are above health goals, led by lead at 32× California’s Public Health Goal.
• Nearest Superfund site: Mason City Coal Gasification Plant, 2.0 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Zinpro Corp (60%), mostly cobalt compounds.
• Fine particles (PM2.5) average 6.6 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 267,117 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 50467

• Superfund sites nearbyD
• Factories and industrial sitesC
• Oil and gas wellsA
• Parks and nature nearbyD
• Air qualityA
• Drinking water qualityD to F
• Pesticide useF
• Neighborhood health statusC
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA
• Radiation signalsD

Based on 1 census tract · compiled September 10, 2026 · how each grade works and its sources

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