Knox County, TN

ZIP 37923

In ZIP 37923, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: West Knox Utility District meets every EPA legal limit; 6 contaminants are above health goals, led by total haloacetic acids (haa5) at 2.8× Peer-Reviewed Research.
• Closer to Superfund sites than 63% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Cmc Steel Tennessee (66%), mostly chromium compounds.
• Fine particles (PM2.5) average 8.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 9,097 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 37923

• Superfund sites nearbyA to D
• Factories and industrial sitesC to D
• Oil and gas wellsA
• Parks and nature nearbyD to F
• Air qualityC to D
• Drinking water qualityC
• Pesticide useB to D
• Neighborhood health statusC to D
• Past wildfire impactsA
• Past flood impactsB
• Noise levelsA to D
• Radiation signalsD to F

Based on 13 census tracts · compiled September 10, 2026 · how each grade works and its sources

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