Montgomery County, IA

ZIP 51573

In ZIP 51573, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Villisca Municipal Water Dept meets every EPA legal limit; 8 contaminants are above health goals, led by bromodichloromethane at 131× California’s Public Health Goal.
• Nearest Superfund site: Red Oak City Landfill, 6.6 miles away.
• Largest share of modeled toxic air from industry: Green Plains Shenandoah LLC (47%), mostly acrolein.
• Fine particles (PM2.5) average 6.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 165,558 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 51573

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

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

Loading the full report, with every source…