Benton County Washington is covered by a total of 14 ZIP Codes. There are 5 ZIP Codes in Benton County that extend into adjacent counties (Franklin County, Grant County, Klickitat County, and Yakima County). Of the ZIP codes within or partially within Benton County there are 11 Standard ZIP Codes and 2 PO Box ZIP Codes.
Click on the ZIP Codes in the interactive map to view more information. The map control in the upper right corner can be used to toggle map layers on and off. The red outline is the border of Benton County and can be turned on and off. Each type of postal code can also be turned on and off.
| ZIP Code | ZIP Code City/Town | ZIP Code Type | |||
|---|---|---|---|---|---|
| Grandview | Standard | |||
| Sunnyside | Standard | |||
| Benton City | Standard | |||
| Kennewick | Standard | |||
| Kennewick | Standard | |||
| Kennewick | Standard | |||
| Mesa | Standard | |||
| Paterson | PO Box | |||
| Plymouth | PO Box | |||
| Mattawa | Standard | |||
| Prosser | Standard | |||
| Richland | Standard | |||
| West Richland | Standard | |||
| Richland | Standard |