Jefferson County, TX

ZIP 77642

In ZIP 77642, 9 of the 12 things we check have at least one part graded D or F.

• Drinking water: City Of Port Neches meets every EPA legal limit; 9 contaminants are above health goals, led by lead at 34× California’s Public Health Goal.
• Nearest Superfund site: Star Lake Canal, 2.5 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Huntsman Petrochemical LLC Port Neches Facility (99%), mostly ethylene oxide.
• Fine particles (PM2.5) average 8.6 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 85,013 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 77642

• Superfund sites nearbyD
• Factories and industrial sitesF
• Oil and gas wellsD
• Parks and nature nearbyC to F
• Air qualityC to D
• Drinking water qualityD to F
• Pesticide useD
• Neighborhood health statusB to F
• Past wildfire impactsA
• Past flood impactsB
• Noise levelsA to D
• Radiation signalsB

Based on 14 census tracts · compiled September 10, 2026 · how each grade works and its sources

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