Oneida County, WI

ZIP 54521

In ZIP 54521, 2 of the 12 things we check have at least one part graded D or F.

• Drinking water: Eagle River Waterworks meets every EPA legal limit; 8 contaminants are above health goals, led by arsenic at 1,294× 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 (67%), mostly chromium compounds.
• Fine particles (PM2.5) average 5.6 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 2,020 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 54521

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

Based on 9 census tracts · compiled October 25, 2026 · how each grade works and its sources

Loading the full report, with every source…