City · California · United States

Hayward, CA — ZIP codes

7 ZIP codes · Alameda County

City: Hayward
County: Alameda
State: California
Country: United States
Postal codes: 94540945419454294543945449454594557
Single source
Coordinates: 37.6802, -121.9215 View on OpenStreetMap

ZIP codes (7)

Postal code	Place name	Verification
94540	Hayward	Single source
94541	Hayward	Single source
94542	Hayward	Single source
94543	Hayward	Single source
94544	Hayward	Single source
94545	Hayward	Single source
94557	Hayward	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. Last generated : 2026-08-21. Report an error.