top of page

Kenneth Spencer

Benton County Treasurer

Chief Deputy Treasurer


Benton County, Washington Treasurer Home Page

Kirsten Yniguez

Benton County Property Search is having connectivity issues at the moment. We are aware of the issue and working towards a solution. Please call our office for assistance 509-735-8505.



Benton County, WA News

The Treasurer's Office will be closed Monday, October 9, 2023 for Staff Training. 


Treasurer's Office is Open

The Benton County Treasurer’s offices is now open to the public, our new address is 7122 W Okanogan Pl #E110, Kennewick, WA 99336. Property tax payments can be made in person, via the mail, or online. For tax information or to pay via e-check, debit or credit card, please visit our website To get in touch with our office, please contact us at the phone number or email below.


Benton County, WA Business Hours

Prosser Office hours:

Monday - Friday                            8:30am - 4:30pm

Closed for Lunch                          12:00pm - 1:00pm

Saturday                                        CLOSED

Sunday                                          CLOSED

Kennewick Office hours:

Monday - Friday                            8:30am - 4:30pm

Saturday                                        CLOSED

Sunday                                          CLOSED

Benton County, WA Contact Information


Letter from the Treasurer

The Treasurer's Office is the property tax collector for Benton County and the Cities, School Districts, Fire Departments, and all the other taxing authorities in the County. Property Taxes are levied on the property by the various taxing authorities  based on the valuation and current property usage as set by the Assessor's Office.

As the "banker" for Benton County, the County Treasurer's Office is also responsible for collecting all other money other  County departments collect such as fees for services, licenses, and revenues from bond issues and special assessments.

As your Treasurer, I value your opinion and will consider it in establishing policies, designing services and updating our  service to you. If we have let you down, please tell me. If you are pleased, I would like to hear that too.

Kenneth Spencer, Jr.
Benton County Treasurer

bottom of page