City · California · United States

Ontario, CA — ZIP codes

4 ZIP codes · San Bernardino County

City: Ontario
County: San Bernardino
State: California
Country: United States
Postal codes: 91758917619176291764
Single source
Coordinates: 34.0633, -117.6509 View on OpenStreetMap

ZIP codes (4)

Postal code	Place name	Verification
91758	Ontario	Single source
91761	Ontario	Single source
91762	Ontario	Single source
91764	Ontario	Single source

Sources and verification

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames · U.S. Census Bureau (ACS). Last generated : 2026-08-21. Report an error.