Hendry County, FL

ZIP 33440

In ZIP 33440, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Seminole - Big Cypress has 2 contaminants at or over an EPA legal limit; 8 contaminants are above health goals, led by arsenic at 157× 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: US Sugar Corp-Clewiston Sugar House (52%), mostly ethylene oxide.
• Fine particles (PM2.5) average 7.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 3,445,573 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 33440

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

Based on 8 census tracts · compiled October 25, 2026 · how each grade works and its sources

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