Brown County, WI

ZIP 54311

In ZIP 54311, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Central Brown Co Water Authority meets every EPA legal limit; 5 contaminants are above health goals, led by bromodichloromethane at 134× California’s Public Health Goal.
• Nearest Superfund site: Better Brite Plating Co. Chrome and Zinc Shops, 4.8 miles away.
• Largest share of modeled toxic air from industry: Durr Systems Inc. (34%), mostly chromium.
• Fine particles (PM2.5) average 7.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 86,682 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 54311

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

Based on 11 census tracts · compiled October 25, 2026 · how each grade works and its sources

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