Washington County Sales Tax Rates in 2026
*'Sales tax rates can vary within the same county because different cities in that county may have their own city sales tax. Please contact us for specified information on your city.
- Adams County 8.2%
- Asotin County 8%
- Benton County 8.8%*
- Chelan County 8.5%
- Clallam County 8.8%
- Clark County 8.8%
- Columbia County 8.4%
- Cowlitz County 8.1%
- Douglas County 8.3%
- Ferry County 8%
- Franklin County 8.9%
- Garfield County 8%
- Grant County 8.4%
- Grays Harbor County 9.1%
- Island County 8.9%
- Jefferson County 9%
- King County 10.550%*
- Kitsap County 9.2%
- Kittitas County 8.6%
- Klickitat County 7.5%
- Lewis County 8.2%
- Lincoln County 8%
- Mason County 8.5%
- Okanogan County 8.7%
- Pacific County 8.3%
- Pend Oreille County 7.6%
- Pierce County 10.3%*
- San Juan County 8.3%
- Skagit County 8.8%
- Skamania County 7.7%
- Snohomish County 9.9%*
- Spokane County 8.1%*
- Stevens County 8.1%
- Thurston County 9.7%*
- Wahkiakum County 7.6%
- Walla Walla County 8.9%
- Whatcom County 9.1%
- Whitman County 7.8%
- Yakima County 8.5%
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