Harris County, TX

ZIP 77078

In ZIP 77078, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Harris County Mud 148 Kingslake meets every EPA legal limit; 8 contaminants are above health goals, led by lead at 15× California’s Public Health Goal.
• Nearest Superfund site: Many Diversified Interests, Inc., 6.2 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Equistar Chemicals Bayport Chemicals Plant (31%), mostly ethylene oxide.
• Fine particles (PM2.5) average 9.6 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 77078

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

Based on 4 census tracts · compiled September 10, 2026 · how each grade works and its sources

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