Polk County, TN

ZIP 37391

In ZIP 37391, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Copper Basin Utility District meets every EPA legal limit; 3 contaminants are above health goals, led by tthm at 44× Peer-Reviewed Research.
• Closer to Superfund sites than 99% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Innovative Water Care LLC Dba Solenis (65%), mostly chlorine.
• Fine particles (PM2.5) average 6.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 11,400 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 37391

• Superfund sites nearbyD to F
• Factories and industrial sitesA
• Oil and gas wellsA
• Parks and nature nearbyB to C
• Air qualityB
• Drinking water qualityB to C
• Pesticide useD
• Neighborhood health statusF
• Past wildfire impactsA
• Past flood impactsB
• Noise levelsA
• Radiation signalsD

Based on 2 census tracts · compiled September 10, 2026 · how each grade works and its sources

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