Fremont County, IA

ZIP 51601

In ZIP 51601, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Southwest Reg Water District (Clarinda) meets every EPA legal limit; 7 contaminants are above health goals, led by bromodichloromethane at 160× California’s Public Health Goal.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Green Plains Shenandoah LLC (99%), mostly acrolein.
• Fine particles (PM2.5) average 6.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 195,929 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 51601

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

Based on 5 census tracts · compiled October 25, 2026 · how each grade works and its sources

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