Union Parish, LA

ZIP 71277

In ZIP 71277, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Darbonne Ws North meets every EPA legal limit; 7 contaminants are above health goals, led by arsenic at 501× California’s Public Health Goal.
• Nearest Superfund site: Marion Pressure Treating, 3.2 miles away.
• Largest share of modeled toxic air from industry: Lanxess - Central (64%), mostly hydrazine.
• Fine particles (PM2.5) average 7.2 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 5,752 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 71277

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

Based on 2 census tracts · compiled October 25, 2026 · how each grade works and its sources

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