Polk County, FL

ZIP 33813

In ZIP 33813, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Bradley Junction, Town Of meets every EPA legal limit; 2 contaminants are above health goals, led by arsenic at 75× California’s Public Health Goal.
• Nearest Superfund site: Landia Chemical Company, 4.0 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Mosaic Fertilizer Llc-Bartow (59%), 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 33813

• Superfund sites nearbyA to D
• Factories and industrial sitesB to C
• Oil and gas wellsA
• Parks and nature nearbyB to D
• Air qualityC to D
• Drinking water qualityB to C
• Pesticide useD to F
• Neighborhood health statusB to D
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA to C
• Radiation signalsB to F

Based on 12 census tracts · compiled October 25, 2026 · how each grade works and its sources

Loading the full report, with every source…