Cobb County, GA

ZIP 30008

In ZIP 30008, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Smyrna meets every EPA legal limit; 7 contaminants are above health goals, led by bromodichloromethane at 123× 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: Dow Chemical Co (38%), mostly diisocyanates.
• Fine particles (PM2.5) average 8.9 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 30008

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

Based on 14 census tracts · compiled September 10, 2026 · how each grade works and its sources

Loading the full report, with every source…