Drop Boxes Open!

The Benton County Treasurer's Office has opened the drop boxes at the Prosser Courthouse, and the Benton County Administration building in Kennewick for property tax payments. The drop boxes are designed for property tax payments made by check. (NO CASH payments)

The drop box locations are:

Benton County Kennewick Office: Open

7122 W Okanogan PL #E110, Kennewick, WA 99336

Benton County Prosser Courthouse: Open

620 Market St, Prosser, WA 99350

Richland City Hall: (Currently Closed)

625 Swift Blvd, Richland, WA 99352