• treasurer411

Tax Payment Drop Box

Updated: Feb 11

The Benton County Treasurer's Office has opened the drop boxes outside both the Prosser Courthouse and the Kennewick Annex for property tax payments. The drop boxes are designated for property tax payments made by check.


The drop box locations are:


Benton County Kennewick Annex:

5600 W. Canal Dr, Kennewick, WA 99336


Benton County Prosser Courthouse:

620 Market St, Prosser, WA 99350


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