Jefferson County, TX

ZIP 77627

In ZIP 77627, 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, 6.8 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Huntsman Petrochemical LLC Port Neches Facility (94%), 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 77627

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

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

Loading the full report, with every source…