Oneida County, WI

ZIP 54501

In ZIP 54501, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Tomahawk Waterworks has 1 contaminant at or over an EPA legal limit; 6 contaminants are above health goals, led by pfos at 3.5× 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: Ahlstrom-Munksjo Rhinelander LLC (87%), mostly chromium compounds.
• Fine particles (PM2.5) average 6.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 30,024 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 54501

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

Based on 11 census tracts · compiled September 10, 2026 · how each grade works and its sources

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