Fort Bend County, TX

ZIP 77545

In ZIP 77545, 6 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.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Equistar Chemicals Bayport Chemicals Plant (36%), mostly ethylene oxide.
• Fine particles (PM2.5) average 8.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 179,768 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 77545

• Superfund sites nearbyA
• Factories and industrial sitesF
• Oil and gas wellsD to F
• Parks and nature nearbyC to D
• Air qualityD
• Drinking water qualityB to C
• Pesticide useC to D
• Neighborhood health statusA to C
• Past wildfire impactsA
• Past flood impactsD
• Noise levelsA
• Radiation signalsB

Based on 8 census tracts · compiled October 25, 2026 · how each grade works and its sources

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