Washburn County, WI

ZIP 54888

In ZIP 54888, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: Minong Waterworks meets every EPA legal limit; 7 contaminants are above health goals, led by arsenic at 448× 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: Louisiana-Pacific Hayward Siding (67%), mostly formaldehyde.
• Fine particles (PM2.5) average 6.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 18,931 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 54888

• Superfund sites nearbyA
• Factories and industrial sitesA to B
• Oil and gas wellsA
• Parks and nature nearbyB to C
• Air qualityA
• Drinking water qualityC to D
• Pesticide useD to F
• Neighborhood health statusD to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsC

Based on 3 census tracts · compiled September 10, 2026 · how each grade works and its sources

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