Portage County, WI

ZIP 54443

In ZIP 54443, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Milladore Waterworks meets every EPA legal limit; 8 contaminants are above health goals, led by arsenic at 106× California’s Public Health Goal.
• Closer to Superfund sites than 61% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Veritas Steel (29%), mostly chromium.
• Fine particles (PM2.5) average 7.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 78,641 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 54443

• Superfund sites nearbyA to D
• Factories and industrial sitesA to B
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityB
• Drinking water qualityB to C
• Pesticide useF
• Neighborhood health statusC to D
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to C
• Radiation signalsC to D

Based on 3 census tracts · compiled October 25, 2026 · how each grade works and its sources

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