Hays County, TX

ZIP 78652

In ZIP 78652, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: Village Of San Leanna has 1 contaminant at or over an EPA legal limit; 10 contaminants are above health goals, led by arsenic at 3,088× 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: Tesla Giga Texas (30%), mostly chromium compounds.
• Fine particles (PM2.5) average 8.2 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 28,850 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 78652

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

Based on 4 census tracts · compiled September 10, 2026 · how each grade works and its sources

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