City · Washington · United States

Kennewick, WA — ZIP codes

3 ZIP codes · Benton County

City: Kennewick
County: Benton
State: Washington
Country: United States
Postal codes: 993369933799338
Single source
Coordinates: 46.2109, -119.1680 View on OpenStreetMap

ZIP codes (3)

Postal code	Place name	Verification
99336	Kennewick	Single source
99337	Kennewick	Single source
99338	Kennewick	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.