2026 Property Tax Due Dates
April 30
First half
October 31
Second half
Payment Methods
Online, Mail, In-Person
Walla Walla County Treasurer
Treasurer
Gordon Heimbigner
Phone
(509) 524-2750Mailing Address
PO Box 777, Walla Walla, WA 99362
Office Hours
How to Pay
Online
Pay using credit card or e-check
By Mail
Mail check payable to Walla Walla County Treasurer — PO Box 777, Walla Walla, WA 99362
In Person
Visit the Treasurer's office — 500 W. Main Street, Walla Walla WA 99362, Mon-Fri 8:30am - 4:30pm
Other Counties in Washington
About Walla Walla County
Walla Walla County ( WAH-lə WAH-lə) is a county located in the southeast of the U.S. state of Washington. As of the 2020 census, its population was 62,584. The county seat and most populous city is Walla Walla.
Source: Wikipedia — content available under CC BY-SA 4.0
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Due dates shown are for reference only. Contact your county treasurer's office to confirm official deadlines before making payments.