Cameron County, TX

ZIP 78526

In ZIP 78526, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Brownsville Public Utilities Board has 1 contaminant at or over an EPA legal limit; 13 contaminants are above health goals, led by pfos at 5.8× 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: Bluewing One LLC (66%), mostly benzene.
• Fine particles (PM2.5) average 9.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 257,100 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 78526

• Superfund sites nearbyA
• Factories and industrial sitesC to D
• Oil and gas wellsA to D
• Parks and nature nearbyB to D
• Air qualityD to F
• Drinking water qualityC to D
• Pesticide useC to F
• Neighborhood health statusA to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to B
• Radiation signalsB

Based on 15 census tracts · compiled October 25, 2026 · how each grade works and its sources

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