Sheboygan County, WI

ZIP 53020

In ZIP 53020, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Sheboygan Tn Waterworks meets every EPA legal limit; 12 contaminants are above health goals, led by pfos at 2.9× California’s Public Health Goal.
• Nearest Superfund site: Kohler Co. Landfill, 7.9 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Oshkosh Defense LLC (29%), mostly chromium.
• Fine particles (PM2.5) average 6.2 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 90,151 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 53020

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

Based on 6 census tracts · compiled September 10, 2026 · how each grade works and its sources

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