Ashe County, NC

ZIP 28643

In ZIP 28643, 2 of the 12 things we check have at least one part graded D or F.

• Drinking water: Jefferson Landing meets every EPA legal limit; 4 contaminants are above health goals, led by bromoform at 8.6× California’s Public Health Goal.
• Nearest Superfund site: Ore Knob Mine, 6.9 miles away.
• Largest share of modeled toxic air from industry: U.S. Chemical Storage LLC (100%), mostly chromium.
• Fine particles (PM2.5) average 6.1 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 16,421 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 28643

• Superfund sites nearbyA to C
• Factories and industrial sitesA
• Oil and gas wellsA
• Parks and nature nearbyB
• Air qualityA
• Drinking water qualityA to B
• Pesticide useD
• Neighborhood health statusF
• Past wildfire impactsA
• Past flood impactsB
• Noise levelsA
• Radiation signalsB to C

Based on 4 census tracts · compiled October 25, 2026 · how each grade works and its sources

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