Nicollet County, MN

ZIP 56073

In ZIP 56073, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Lafayette meets every EPA legal limit; 11 contaminants are above health goals, led by arsenic at 317× California’s Public Health Goal.
• Nearest Superfund site: Lehillier/mankato, 8.3 miles away.
• Largest share of modeled toxic air from industry: Tbei - Truck Bodies & Equipment International (Lake Crystal) (98%), mostly chromium.
• Fine particles (PM2.5) average 6.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 196,301 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 56073

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

Based on 8 census tracts · compiled October 25, 2026 · how each grade works and its sources

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