Gillespie County, TX

ZIP 78624

In ZIP 78624, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Whispering Oaks Water Works meets every EPA legal limit; 4 contaminants are above health goals, led by arsenic at 463× 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.
• Fine particles (PM2.5) average 6.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 38,247 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 78624

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

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

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