Zapata County, TX

ZIP 78076

In ZIP 78076, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Zapata County Wcid Hwy 16 East meets every EPA legal limit; 8 contaminants are above health goals, led by bromodichloromethane at 165× 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: Thompsonville Gas Plant (100%), mostly benzene.
• Fine particles (PM2.5) average 8.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 8,115 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 78076

• Superfund sites nearbyA
• Factories and industrial sitesA to B
• Oil and gas wellsD
• Parks and nature nearbyB to C
• Air qualityC to D
• Drinking water qualityC
• Pesticide useC to F
• Neighborhood health statusD
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsA

Based on 6 census tracts · compiled October 25, 2026 · how each grade works and its sources

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