Polk County, FL

ZIP 33805

In ZIP 33805, 9 of the 12 things we check have at least one part graded D or F.

• Drinking water: Polk City System meets every EPA legal limit; 5 contaminants are above health goals, led by arsenic at 729× California’s Public Health Goal.
• Nearest Superfund site: Landia Chemical Company, 1.5 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Chromalloy Castings (37%), mostly sulfuric acid.
• Fine particles (PM2.5) average 8.0 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 33805

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

Based on 9 census tracts · compiled September 10, 2026 · how each grade works and its sources

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