Marathon County, WI

ZIP 54426

In ZIP 54426, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Stratford Waterworks meets every EPA legal limit; 12 contaminants are above health goals, led by pfos at 2.4× California’s Public Health Goal.
• Nearest Superfund site: Unity Auto Mart, 7.1 miles away.
• Largest share of modeled toxic air from industry: Veritas Steel (43%), mostly chromium.
• Fine particles (PM2.5) average 7.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 185,897 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 54426

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

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

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