Brown County, WI

ZIP 54307

In ZIP 54307, 3 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, 2.9 miles away.
• Largest share of modeled toxic air from industry: Astro Industries Inc (38%), mostly chromium.
• Fine particles (PM2.5) average 7.6 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 54307

• Superfund sites nearbyF
• Factories and industrial sitesF
• Oil and gas wellsA
• Parks and nature nearbyB
• Air qualityC
• Drinking water qualityC
• Pesticide useC
• Neighborhood health statusA
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsD
• Radiation signalsB

Based on 1 census tract · compiled October 25, 2026 · how each grade works and its sources

Loading the full report, with every source…