Cook County, GA

ZIP 31620

In ZIP 31620, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Sparks meets every EPA legal limit; 7 contaminants are above health goals, led by lead at 15× California’s Public Health Goal.
• Closer to Superfund sites than 54% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Langboard Mdf (47%), mostly formaldehyde.
• Fine particles (PM2.5) average 7.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 273,099 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 31620

• Superfund sites nearbyA to C
• Factories and industrial sitesA
• Oil and gas wellsA
• Parks and nature nearbyC to D
• Air qualityC
• Drinking water qualityA to D
• Pesticide useF
• Neighborhood health statusD to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsB

Based on 5 census tracts · compiled September 10, 2026 · how each grade works and its sources

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