San Bernardino County, CA
ZIP 92284
In ZIP 92284, 5 of the 12 things we check have at least one part graded D or F.
- Drinking water: Hi Desert Wd meets every EPA legal limit; 15 contaminants are above health goals, led by pfos at 2.1× 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: Mitsubishi Cement Corp. (91%), mostly chromium.
- Fine particles (PM2.5) average 5.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
- About 52,223 kg of agricultural pesticides are applied in the county each year.
Grades for ZIP 92284
- Superfund sites nearbyA
- Factories and industrial sitesA
- Oil and gas wellsA
- Parks and nature nearbyB to D
- Air qualityA
- Drinking water qualityC to F
- Pesticide useB to C
- Neighborhood health statusC to F
- Past wildfire impactsA to F
- Past flood impactsA to C
- Noise levelsA to B
- Radiation signalsD to F
Based on 11 census tracts · compiled September 10, 2026 · how each grade works and its sources
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