Loudoun County, VA
ZIP 20105
In ZIP 20105, 3 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.
- Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
- Largest share of modeled toxic air from industry: Micron Technology Inc. (81%), mostly chlorine.
- Fine particles (PM2.5) average 7.2 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 20105
- Superfund sites nearbyA
- Factories and industrial sitesA
- Oil and gas wellsA
- Parks and nature nearbyC
- 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 C
- Radiation signalsB to D
Based on 7 census tracts · compiled October 25, 2026 · how each grade works and its sources
Loading the full report, with every source…