Bexar County, TX

ZIP 78210

In ZIP 78210, 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, 3.7 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: The San Antonio Refinery LLC (49%), 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 78210

• Superfund sites nearbyA to D
• Factories and industrial sitesD to F
• Oil and gas wellsC to D
• Parks and nature nearbyB to D
• Air qualityD to F
• Drinking water qualityC
• Pesticide useB to C
• Neighborhood health statusB to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsB

Based on 17 census tracts · compiled October 25, 2026 · how each grade works and its sources

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