Marion County, MS

ZIP 39643

In ZIP 39643, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Magees Creek W/A-North meets every EPA legal limit; 2 contaminants are above health goals, led by lead at 4.6× 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: Georgia-Pacific Monticello Ll C (80%), mostly hydrogen sulfide.
• Fine particles (PM2.5) average 7.2 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 21,404 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 39643

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

Based on 4 census tracts · compiled September 10, 2026 · how each grade works and its sources

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