Thurston County, Washington

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County Contacts
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Thurston County Washington

Treasurer

The County Treasurer holds a key position of public trust in the financial affairs of local government. Acting as the bank for the county, local cities, school districts, fire districts, special purpose districts and other units of local government, the Treasurer's Office receipts, disburses, invests and accounts for the funds of each of these entities. In addition, the Treasurer is charged with the collection of various taxes that benefit a wide range of governmental functions.

Our Mission - Maintain the public's trust by managing their funds with integrity while utilizing best professional practices to provide excellent customer service with a staff that is responsive, knowledgeable, efficient, and courteous.

Photo of Treasurer Jeff Gadman
Jeff Gadman
Thurston County Treasurer

Related News

All News
image shows a calendar with the words April 30 Due Date circled in red

2026 Property Tax Notices Mailed This Week

County Treasurer's Office mailed 2026 property tax notices to Thurston County taxpayers on Monday, February 9, 2026.

February 09, 2026

Announcements
image is a photo of Thurston County Treasurer Jeff Gadman standing next to Thurston County Banking and Investment Officer Rodney Reynolds.

Thurston County’s Approach to Investing Wins Statewide Excellence Award

Thurston County has been recognized by the Washington Public Treasurer’s Association (WPTA) for excellence in its approach to investing the public funds under its care. The 2026 Certificate of Excellence Award for Investment Policy - which was awarded after rigorous review of the County’s policy by a statewide panel - highlights the sophisticated operation and the professional staff that function as the financial engine of the County.

January 15, 2026

Announcements
image of calendar showing October 31 in red with the words Final day!

Second Half of 2025 Property Taxes Due October 31

The second half of 2025 property taxes is due Friday, October 31, 2025. Payments accepted online, in person, or mailed by due date

October 17, 2025

Announcements

Treasurer

360-786-5550
Contact Us

Treasurer's Office Location

3000 Pacific Ave SE
Olympia, WA 98501
Phone: 360-786-5550
Fax: 360-754-4683
Monday–Friday: 8:00 am–4:30 pm

Mailing Address

3000 Pacific Ave SE
Olympia, WA 98501