What to know about ZIP 92521
ZIP code 92521 covers Riverside, CA in Riverside County.
It sits in telephone area code 951; U.S. House district CA-39; the PALM SPRINGS media market.
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Riverside city, CA
ZIP Code 92521 — Riverside city, CA Demographics & Data
Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.
Map, Quick Facts & Location
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At a glance
Overview of ZIP Code 92521
Climate risk and migration signals
FEMA’s National Risk Index rates natural-hazard risk for Riverside city, CA as Very High (composite score 99.9), which is among the highest nationally. The strongest component scores on US5 are wildfire (100.0) and flood (99.9). These scores are county-linked NRI values published for planning context — all ZIP codes in the same county share the same composite score on US5. Useful when comparing insurance and disaster exposure across areas, not a substitute for a parcel-level flood or fire determination.
Climate normals for Riverside city, CA show limited published climate normals on US5.