Los Angeles County, CA
ZIP 90401
In ZIP 90401, 8 of the 12 things we check have at least one part graded D or F.
- Drinking water: Santa Monica-City, Water Division has 2 contaminants at or over an EPA legal limit; 24 contaminants are above health goals, led by tetrachloroethylene at 111× 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: Certified Alloy Products Inc (26%), mostly cobalt.
- Fine particles (PM2.5) average 11.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
- About 250,208 kg of agricultural pesticides are applied in the county each year.
Grades for ZIP 90401
- Superfund sites nearbyA
- Factories and industrial sitesD
- Oil and gas wellsF
- Parks and nature nearbyD to F
- Air qualityF
- Drinking water qualityF
- Pesticide useB to D
- Neighborhood health statusB
- Past wildfire impactsD
- Past flood impactsA
- Noise levelsC to D
Based on 4 census tracts · compiled September 10, 2026 · how each grade works and its sources
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