San Patricio County, TX

ZIP 78368

In ZIP 78368, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Rincon Wsc meets every EPA legal limit; 9 contaminants are above health goals, led by lead at 19× California’s Public Health Goal.
• Closer to Superfund sites than 54% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: American Chrome & Chemicals Inc (34%), mostly chromium compounds.
• Fine particles (PM2.5) average 7.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 290,718 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 78368

• Superfund sites nearbyA to C
• Factories and industrial sitesB to C
• Oil and gas wellsD to F
• Parks and nature nearbyC to D
• Air qualityB
• Drinking water qualityD
• Pesticide useF
• Neighborhood health statusD
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsB to C

Based on 5 census tracts · compiled September 10, 2026 · how each grade works and its sources

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