San Bernardino County, CA

ZIP 91761

In ZIP 91761, 9 of the 12 things we check have at least one part graded D or F.

• Drinking water: Jurupa Community Sd has 1 contaminant at or over an EPA legal limit; 15 contaminants are above health goals, led by pfos at 3.5× California’s Public Health Goal.
• Nearest Superfund site: Stringfellow, 6.4 miles away.
• Largest share of modeled toxic air from industry: Sterigenics-Ontario Facility (96%), mostly ethylene oxide.
• Fine particles (PM2.5) average 14.4 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 91761

• Superfund sites nearbyA to D
• Factories and industrial sitesD to F
• Oil and gas wellsC to F
• Parks and nature nearbyC to D
• Air qualityF
• Drinking water qualityC to D
• Pesticide useA to C
• Neighborhood health statusA to C
• Past wildfire impactsC to D
• Past flood impactsC
• Noise levelsA to F
• Radiation signalsC to D

Based on 18 census tracts · compiled October 25, 2026 · how each grade works and its sources

Loading the full report, with every source…