Riverside County, CA
ZIP 92543
In ZIP 92543, 8 of the 12 things we check have at least one part graded D or F.
- Drinking water: Rancho California Water District has 2 contaminants at or over an EPA legal limit; 18 contaminants are above health goals, led by vanadium at 2× 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: Mccrometer (99%), mostly chromium.
- Fine particles (PM2.5) average 8.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
- About 1,172,577 kg of agricultural pesticides are applied in the county each year.
Grades for ZIP 92543
- Superfund sites nearbyA
- Factories and industrial sitesB to C
- Oil and gas wellsA to C
- Parks and nature nearbyB to F
- Air qualityA to F
- Drinking water qualityC to F
- Pesticide useD to F
- Neighborhood health statusB to F
- Past wildfire impactsD to F
- Past flood impactsA to C
- Noise levelsA to D
- Radiation signalsC to D
Based on 19 census tracts · compiled September 10, 2026 · how each grade works and its sources
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