2026 Property Tax Due Dates
April 30
First half
October 31
Second half
Payment Methods
Online, Mail, In-Person
San Juan County Treasurer
Treasurer
Glenis Pearson
Phone
(360) 378-2171Mailing Address
P.O. Box 639, Friday Harbor, WA 98250
Office Hours
How to Pay
Online
Pay using credit card or e-check
By Mail
Mail check payable to San Juan County Treasurer — P.O. Box 639, Friday Harbor, WA 98250
In Person
Visit the Treasurer's office — 350 Court Street, Friday Harbor WA 98250, Mon-Fri 8:30am - 4:30pm
Other Counties in Washington
About San Juan County
San Juan County is a county in the Salish Sea in the far northwestern corner of the U.S. state of Washington. As of the 2020 census, its population was 17,788. The county seat and only incorporated town is Friday Harbor, on San Juan Island.
Source: Wikipedia — content available under CC BY-SA 4.0
Related Resources
Get Deadline Reminders
We'll email you 2 weeks before your property taxes are due.
Due dates shown are for reference only. Contact your county treasurer's office to confirm official deadlines before making payments.