Mills County, IA

ZIP 51551

In ZIP 51551, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Country Estates Mobile Home Park has 2 contaminants at or over an EPA legal limit; 5 contaminants are above health goals, led by pfhxs at 103× California Notification Level.
• Nearest Superfund site: Aidex Corp., 5.7 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Midamerican Energy Co Walter Scott Jr Energy Center (41%), mostly acrolein.
• Fine particles (PM2.5) average 6.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 172,447 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 51551

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

Based on 3 census tracts · compiled October 25, 2026 · how each grade works and its sources

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