Door County, WI

ZIP 54234

In ZIP 54234, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Sister Bay Waterworks meets every EPA legal limit; 11 contaminants are above health goals, led by lead at 13× California’s Public Health Goal.
• Nearest Superfund site: Fox River Nrda/pcb Releases, 6.9 miles away.
• Largest share of modeled toxic air from industry: L.E. Jones Co LLC (42%), mostly cobalt.
• Fine particles (PM2.5) average 5.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 82,628 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 54234

• Superfund sites nearbyF
• Factories and industrial sitesA
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityA
• Drinking water qualityD
• Pesticide useF
• Neighborhood health statusD
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA

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

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