Clark County, WI

ZIP 54437

In ZIP 54437, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Loyal Waterworks meets every EPA legal limit; 14 contaminants are above health goals, led by lead at 80× California’s Public Health Goal.
• Nearest Superfund site: Unity Auto Mart, 7.5 miles away.
• Largest share of modeled toxic air from industry: H & S Manufacturing Co Inc (50%), mostly chromium.
• Fine particles (PM2.5) average 6.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 118,411 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 54437

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

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

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