Clarke County, VA

ZIP 22663

In ZIP 22663, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Winchester, City Of meets every EPA legal limit; 7 contaminants are above health goals, led by bromodichloromethane at 108× California’s Public Health Goal.
• Nearest Superfund site: Avtex Fibers, Inc., 4.1 miles away.
• Largest share of modeled toxic air from industry: Trex - Virginia Manufacturing Operations (72%), mostly chromium compounds.
• Fine particles (PM2.5) average 7.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 26,999 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 22663

• Superfund sites nearbyA to D
• Factories and industrial sitesB to C
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityB to C
• Drinking water qualityB to C
• Pesticide useD to F
• Neighborhood health statusC to D
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsD

Based on 5 census tracts · compiled October 25, 2026 · how each grade works and its sources

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