Iberville Parish, LA

ZIP 70764

In ZIP 70764, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Town Of White Castle Water System has 1 contaminant at or over an EPA legal limit; 12 contaminants are above health goals, led by pfos at 1.8× California’s Public Health Goal.
• Nearest Superfund site: Capitol Lakes, 6.8 miles away.
• Largest share of modeled toxic air from industry: The Dow Chemical Co - Louisiana Operations (73%), mostly ethylene oxide.
• Fine particles (PM2.5) average 8.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 42,244 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 70764

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

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

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