Orange County, TX

ZIP 77630

In ZIP 77630, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Longford Place Water System meets every EPA legal limit; 7 contaminants are above health goals, led by lead at 31× California’s Public Health Goal.
• Nearest Superfund site: Bailey Waste Disposal, 3.8 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Huntsman Petrochemical LLC Port Neches Facility (91%), mostly ethylene oxide.
• Fine particles (PM2.5) average 7.6 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 4,801 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 77630

• Superfund sites nearbyA to D
• Factories and industrial sitesD to F
• Oil and gas wellsD to F
• Parks and nature nearbyB to D
• Air qualityC
• Drinking water qualityC to F
• Pesticide useC to D
• Neighborhood health statusC to F
• Past wildfire impactsA
• Past flood impactsB
• Noise levelsA to B
• Radiation signalsB to C

Based on 13 census tracts · compiled September 10, 2026 · how each grade works and its sources

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