Cobb County, GA

ZIP 30111

In ZIP 30111, 2 of the 12 things we check have at least one part graded D or F.

• Drinking water: Cobb County meets every EPA legal limit; 9 contaminants are above health goals, led by bromodichloromethane at 132× California’s Public Health Goal.
• 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: Mplx Terminals LLC - Powder Springs Ga Terminal (25%), mostly benzene.
• Fine particles (PM2.5) average 8.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 1,694 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 30111

• Superfund sites nearbyA
• Factories and industrial sitesC
• Oil and gas wellsA
• Parks and nature nearbyD
• Air qualityD
• Drinking water qualityC
• Pesticide useA
• Neighborhood health statusC
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsC

Based on 1 census tract · compiled September 10, 2026 · how each grade works and its sources

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