Polk County, FL

ZIP 33823

In ZIP 33823, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Winter Haven Water Department has 3 contaminants at or over an EPA legal limit; 12 contaminants are above health goals, led by pfos at 5.4× California’s Public Health Goal.
• Nearest Superfund site: Landia Chemical Company, 8.4 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Mosaic Fertilizer Llc-Bartow (36%), mostly sulfuric acid.
• Fine particles (PM2.5) average 8.1 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 33823

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

Based on 13 census tracts · compiled September 10, 2026 · how each grade works and its sources

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