Washington County, MD

ZIP 21719

In ZIP 21719, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Town Of Thurmont has 2 contaminants at or over an EPA legal limit; 9 contaminants are above health goals, led by pfos at 22× California’s Public Health Goal.
• Nearest Superfund site: Central Chemical (hagerstown), 7.4 miles away.
• Largest share of modeled toxic air from industry: Holcim(Us) Inc. (70%), mostly chromium.
• Fine particles (PM2.5) average 7.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 144,043 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 21719

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

Based on 3 census tracts · compiled October 25, 2026 · how each grade works and its sources

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