Polk County, FL

ZIP 33840

In ZIP 33840, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Croft's Mobile Home Park meets every EPA legal limit; 8 contaminants are above health goals, led by arsenic at 400× California’s Public Health Goal.
• Nearest Superfund site: Landia Chemical Company, 4.9 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Mosaic Fertilizer Llc-Bartow (29%), mostly sulfuric acid.
• Fine particles (PM2.5) average 7.9 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 3,677,183 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 33840

• Superfund sites nearbyD
• Factories and industrial sitesC
• Oil and gas wellsA
• Parks and nature nearbyD
• Air qualityC
• Drinking water qualityC to D
• Pesticide useF
• Neighborhood health statusF
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA
• Radiation signalsD

Based on 1 census tract · compiled September 10, 2026 · how each grade works and its sources

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