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City · California · United States

Walnut Creek, CA — ZIP codes

4 ZIP codes · Contra Costa County

City
Walnut Creek
County
Contra Costa
State
California
Country
United States
Postal codes
94595945969459794598
Single source
Coordinates
37.8753, -122.0703 View on OpenStreetMap

ZIP codes (4)

Postal codePlace nameVerification
94595Walnut CreekSingle source
94596Walnut CreekSingle source
94597Walnut CreekSingle source
94598Walnut CreekSingle 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. Last generated : 2026-08-21. Report an error.