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Wahkiakum County Property Tax Due Date

Washington

(360) 795-3550

2026 Property Tax Due Dates

Official Source
Installment 1

April 30

First half

Installment 2

October 31

Second half

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Penalty: 3% June 1, +8% December 1Grace period: None

Payment Methods

Online, Mail, In-Person

Wahkiakum County Treasurer

Treasurer

Tammy Peterson

Office Address

64 Main St
Cathlamet, WA 98612

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Mailing Address

P.O. Box 85, Cathlamet, WA 98612

Office Hours

Mon-Fri 8am - 4pm

How to Pay

Online

Pay using credit card or e-check

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By Mail

Mail check payable to Wahkiakum County Treasurer — P.O. Box 85, Cathlamet, WA 98612

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In Person

Visit the Treasurer's office — 64 Main St, Cathlamet WA 98612, Mon-Fri 8am - 4pm

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Other Counties in Washington

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About Wahkiakum County

Wahkiakum County ( wə-KY-ə-kum) is a county located in the U.S. state of Washington. As of the 2020 census, the population was 4,422, making it the third-least populous county in Washington. The county seat and only incorporated town is Cathlamet.

Source: Wikipedia — content available under CC BY-SA 4.0

Related Resources

CountyRollCounty Office Directory

Find the assessor, treasurer & recorder for Wahkiakum

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Property Tax FAQTax Calendar

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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.