Houston County, MN

ZIP 55943

In ZIP 55943, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: La Crosse Waterworks meets every EPA legal limit; 16 contaminants are above health goals, led by lead at 36× California’s Public Health Goal.
• Nearest Superfund site: Onalaska Municipal Landfill, 9.4 miles away.
• Largest share of modeled toxic air from industry: Alliant Castings (49%), mostly chromium.
• Fine particles (PM2.5) average 6.9 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 147,675 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 55943

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

Based on 5 census tracts · compiled September 10, 2026 · how each grade works and its sources

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