Duval County, FL

ZIP 32256

In ZIP 32256, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Jea Major Grid meets every EPA legal limit; 18 contaminants are above health goals, led by arsenic at 238× California’s Public Health Goal.
• Nearest Superfund site: Jacksonville Naval Air Station, 6.5 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Medtronic Xomed LLC (92%), mostly ethylene oxide.
• Fine particles (PM2.5) average 8.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 5,161 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 32256

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

Based on 12 census tracts · compiled September 10, 2026 · how each grade works and its sources

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