Santa Clara County, CA
ZIP 95129
In ZIP 95129, 7 of the 12 things we check have at least one part graded D or F.
- Drinking water: Santa Clara Valley Water District meets every EPA legal limit; 14 contaminants are above health goals, led by pfos at 3.7× California’s Public Health Goal.
- Nearest Superfund site: Intersil Inc./siemens Components, 1.6 miles away (3 within 10 miles).
- Largest share of modeled toxic air from industry: Tesla Inc. (73%), mostly cobalt compounds.
- Fine particles (PM2.5) average 8.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
- About 162,482 kg of agricultural pesticides are applied in the county each year.
Grades for ZIP 95129
- Superfund sites nearbyF
- Factories and industrial sitesB to C
- Oil and gas wellsA
- Parks and nature nearbyD to F
- Air qualityC to F
- Drinking water qualityD to F
- Pesticide useC to F
- Neighborhood health statusA to B
- Past wildfire impactsC
- Past flood impactsA
- Noise levelsA to D
- Radiation signalsC to D
Based on 15 census tracts · compiled September 10, 2026 · how each grade works and its sources
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