Bexar County, TX

ZIP 78211

In ZIP 78211, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: San Antonio Water System meets every EPA legal limit; 11 contaminants are above health goals, led by bromodichloromethane at 152× California’s Public Health Goal.
• Nearest Superfund site: R & H Oil/tropicana Energy, 1.1 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: The San Antonio Refinery LLC (61%), mostly benzene.
• Fine particles (PM2.5) average 9.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 58,581 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 78211

• Superfund sites nearbyD to F
• Factories and industrial sitesB to D
• Oil and gas wellsD
• Parks and nature nearbyB to D
• Air qualityD to F
• Drinking water qualityA to C
• Pesticide useB to C
• Neighborhood health statusD to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsA to B

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

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