Lafayette County, WI

ZIP 53803

In ZIP 53803, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Shullsburg Waterworks meets every EPA legal limit; 9 contaminants are above health goals, led by lead at 22× California’s Public Health Goal.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: East Dubuque Nitrogen Fertilizers LLC (74%), mostly formaldehyde.
• Fine particles (PM2.5) average 6.9 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 204,717 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 53803

• Superfund sites nearbyA
• Factories and industrial sitesA
• Oil and gas wellsA
• Parks and nature nearbyD
• Air qualityB
• Drinking water qualityD
• Pesticide useF
• Neighborhood health statusC to D
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA
• Radiation signalsD

Based on 2 census tracts · compiled September 10, 2026 · how each grade works and its sources

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