Washington County, TX

ZIP 77426

In ZIP 77426, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Northeast Washington County meets every EPA legal limit; 8 contaminants are above health goals, led by lead at 18× California’s Public Health Goal.
• Nearest Superfund site: Sheridan Disposal Services, 6.6 miles away.
• Largest share of modeled toxic air from industry: Grant Prideco (66%), mostly chromium.
• Fine particles (PM2.5) average 7.2 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 22,655 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 77426

• Superfund sites nearbyA to C
• Factories and industrial sitesB to C
• Oil and gas wellsC to D
• Parks and nature nearbyD
• Air qualityB
• Drinking water qualityD
• Pesticide useF
• Neighborhood health statusC to D
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA to B
• Radiation signalsB

Based on 3 census tracts · compiled September 10, 2026 · how each grade works and its sources

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