Forrest County, MS

ZIP 39401

In ZIP 39401, 9 of the 12 things we check have at least one part graded D or F.

• Drinking water: Arnold Line Water Association meets every EPA legal limit; 5 contaminants are above health goals, led by lead at 39× California’s Public Health Goal.
• Nearest Superfund site: Davis Timber Company, 6.5 miles away.
• Largest share of modeled toxic air from industry: Howard Industries Inc. (65%), mostly chromium compounds.
• Fine particles (PM2.5) average 8.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 17,469 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 39401

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

Based on 19 census tracts · compiled September 10, 2026 · how each grade works and its sources

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