Catahoula Parish, LA

ZIP 71326

In ZIP 71326, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Town Of Ferriday Water System has 1 contaminant at or over an EPA legal limit; 15 contaminants are above health goals, led by arsenic at 5,411× California’s Public Health Goal.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Basf Corp - Vidalia Works (96%), mostly copper compounds.
• Fine particles (PM2.5) average 7.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 352,539 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 71326

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

Based on 2 census tracts · compiled September 10, 2026 · how each grade works and its sources

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