Harris County, TX

ZIP 77079

In ZIP 77079, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: City Of Houston meets every EPA legal limit; 15 contaminants are above health goals, led by arsenic at 878× California’s Public Health Goal.
• Nearest Superfund site: Crystal Chemical Co., 6.9 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Nov Rig Systems West Little York (31%), mostly chromium.
• Fine particles (PM2.5) average 8.7 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 77079

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

Based on 11 census tracts · compiled October 25, 2026 · how each grade works and its sources

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