Brazos County, TX

ZIP 77803

In ZIP 77803, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Benchley Oaks Subdivision meets every EPA legal limit; 9 contaminants are above health goals, led by bromodichloromethane at 352× 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: Grant Prideco (86%), mostly chromium.
• Fine particles (PM2.5) average 8.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 85,241 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 77803

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

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

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