Riverside County, CA

ZIP 92585

In ZIP 92585, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Perris, City Of meets every EPA legal limit; 8 contaminants are above health goals, led by lead at 175× California’s Public Health Goal.
• Nearest Superfund site: March Air Force Base, 9.4 miles away.
• Largest share of modeled toxic air from industry: Steris Inc (37%), mostly ethylene oxide.
• Fine particles (PM2.5) average 8.1 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 92585

• Superfund sites nearbyA to C
• Factories and industrial sitesB
• Oil and gas wellsA to C
• Parks and nature nearbyC to D
• Air qualityB to D
• Drinking water qualityF
• Pesticide useD to F
• Neighborhood health statusB to D
• Past wildfire impactsC to D
• Past flood impactsA to C
• Noise levelsA to B
• Radiation signalsC

Based on 10 census tracts · compiled September 10, 2026 · how each grade works and its sources

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