Ontario, California

4 ZIP codes · Pacific time

ZIP codes (largest first)

91762 · 64,23591761 · 62,93591764 · 56,27091758 (PO box)
Population180,547
StateCalifornia
CountySan Bernardino County
Time zonePacific
Land area49.98 sq mi

Area codes in this area

840909

These are the area codes that most often serve Ontario (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Find the ZIP+4 for an address in Ontario

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Population: U.S. Census Bureau, ACS 5-year estimates, 2024.