Harris County, TX

ZIP 77024

In ZIP 77024, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Harris County Mud 537 meets every EPA legal limit; 7 contaminants are above health goals, led by bromodichloromethane at 131× California’s Public Health Goal.
• Nearest Superfund site: South Cavalcade Street, 5.7 miles away (3 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 77024

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

Based on 14 census tracts · compiled October 25, 2026 · how each grade works and its sources

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