Polk County, WI

ZIP 54005

In ZIP 54005, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Somerset Waterworks has 1 contaminant at or over an EPA legal limit; 10 contaminants are above health goals, led by cyanide at 660× 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: Red Wing Shoe Plant 2 (67%), mostly diisocyanates.
• Fine particles (PM2.5) average 6.9 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 135,744 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 54005

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

Based on 6 census tracts · compiled October 25, 2026 · how each grade works and its sources

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