Natchitoches Parish, LA
ZIP 71457
In ZIP 71457, 8 of the 12 things we check have at least one part graded D or F.
- Drinking water: Backwood Village Water System meets every EPA legal limit; 10 contaminants are above health goals, led by dibromochloromethane at 785× California’s Public Health Goal.
- Nearest Superfund site: American Creosote Works, Inc. (winnfield Plant), 8.7 miles away.
- Largest share of modeled toxic air from industry: International Paper / Red River Mill (91%), mostly formaldehyde.
- Fine particles (PM2.5) average 7.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
- About 165,618 kg of agricultural pesticides are applied in the county each year.
Grades for ZIP 71457
- Superfund sites nearbyA to D
- Factories and industrial sitesA to D
- Oil and gas wellsA to D
- Parks and nature nearbyA to D
- Air qualityB to C
- Drinking water qualityA to C
- Pesticide useB to F
- Neighborhood health statusC to F
- Past wildfire impactsA to D
- Past flood impactsB to C
- Noise levelsA to D
- Radiation signalsA to C
Based on 12 census tracts · compiled October 25, 2026 · how each grade works and its sources
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