Pope County, MN

ZIP 56323

In ZIP 56323, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: Donnelly meets every EPA legal limit; 8 contaminants are above health goals, led by arsenic at 970× California’s Public Health Goal.
• Nearest Superfund site: Morris Arsenic Dump, 4.8 miles away.
• Largest share of modeled toxic air from industry: Denco II LLC (48%), mostly acetaldehyde.
• Fine particles (PM2.5) average 6.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 218,765 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 56323

• Superfund sites nearbyA
• Factories and industrial sitesA to B
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityA
• Drinking water qualityC
• Pesticide useF
• Neighborhood health statusC to D
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsD

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

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