DeKalb County, GA

ZIP 30021

In ZIP 30021, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Dekalb County meets every EPA legal limit; 6 contaminants are above health goals, led by lead at 161× California’s Public Health Goal.
• Nearest Superfund site: Westside Lead, 9.0 miles away.
• Largest share of modeled toxic air from industry: Becton Dickinson & Co Covington Operations (69%), mostly ethylene oxide.
• Fine particles (PM2.5) average 9.1 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 221 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 30021

• Superfund sites nearbyA
• Factories and industrial sitesD
• Oil and gas wellsA
• Parks and nature nearbyD
• Air qualityD to F
• Drinking water qualityF
• Pesticide useA to B
• Neighborhood health statusB to D
• Past wildfire impactsA
• Past flood impactsB
• Noise levelsA to D
• Radiation signalsD

Based on 11 census tracts · compiled September 10, 2026 · how each grade works and its sources

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