Harris County, TX

ZIP 77063

In ZIP 77063, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Memorial Villages Water Authority meets every EPA legal limit; 12 contaminants are above health goals, led by lead at 32× California’s Public Health Goal.
• Nearest Superfund site: Crystal Chemical Co., 1.6 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Equistar Chemicals Bayport Chemicals Plant (32%), mostly ethylene oxide.
• Fine particles (PM2.5) average 9.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 38,374 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 77063

• Superfund sites nearbyD to F
• Factories and industrial sitesD
• Oil and gas wellsD
• Parks and nature nearbyD to F
• Air qualityD to F
• Drinking water qualityD to F
• Pesticide useB to C
• Neighborhood health statusA to C
• Past wildfire impactsA
• Past flood impactsC to D
• Noise levelsA to C
• Radiation signalsB to C

Based on 17 census tracts · compiled September 10, 2026 · how each grade works and its sources

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