Hidalgo County, TX

ZIP 78563

In ZIP 78563, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: El Tanque Wsc meets every EPA legal limit; 8 contaminants are above health goals, led by bromodichloromethane at 147× 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: Ge Engine Services Mcallen LP (100%), mostly cobalt.
• Fine particles (PM2.5) average 7.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 63,791 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 78563

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

Based on 2 census tracts · compiled October 25, 2026 · how each grade works and its sources

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