Loudoun County, VA
ZIP 20175
In ZIP 20175, 5 of the 12 things we check have at least one part graded D or F.
- Drinking water: Middleburg, Town Of has 2 contaminants at or over an EPA legal limit; 10 contaminants are above health goals, led by alphaparticles at 1.1× PollutionProfile review of EPA standards.
- Nearest Superfund site: Hidden Lane Landfill, 5.5 miles away.
- Largest share of modeled toxic air from industry: Micron Technology Inc. (71%), mostly chlorine.
- Fine particles (PM2.5) average 7.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
- About 97,008 kg of agricultural pesticides are applied in the county each year.
Grades for ZIP 20175
- Superfund sites nearbyA to D
- Factories and industrial sitesA
- Oil and gas wellsA
- Parks and nature nearbyB to C
- Air qualityB to C
- Drinking water qualityB to F
- Pesticide useC to D
- Neighborhood health statusA to C
- Past wildfire impactsA
- Past flood impactsA to B
- Noise levelsA to D
- Radiation signalsB to D
Based on 13 census tracts · compiled October 25, 2026 · how each grade works and its sources
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