Santa Barbara County, CA
ZIP 93103
In ZIP 93103, 6 of the 12 things we check have at least one part graded D or F.
- Drinking water: City Of Santa Barbara Water Department has 1 contaminant at or over an EPA legal limit; 15 contaminants are above health goals, led by arsenic at 1,380× 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: Nusil Technology LLC (100%), mostly xylene (mixed isomers).
- Fine particles (PM2.5) average 8.1 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
- About 1,826,041 kg of agricultural pesticides are applied in the county each year.
Grades for ZIP 93103
- Superfund sites nearbyA
- Factories and industrial sitesB to D
- Oil and gas wellsA to C
- Parks and nature nearbyA to B
- Air qualityA to D
- Drinking water qualityC to F
- Pesticide useD to F
- Neighborhood health statusA to C
- Past wildfire impactsD to F
- Past flood impactsB
- Noise levelsA to F
Based on 8 census tracts · compiled October 25, 2026 · how each grade works and its sources
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