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Black Diamond Sales Tax

What is the sales tax for Black Diamond, Washington? - The sales tax for Black Diamond, Washington is 8.9% as of 2025. 8.9% is the combine sales tax from 6.5% of Washington state sales tax, 2.4% of local sales tax, and 0% of King county sales tax.

StateWashingtonState Tax6.5%
CityBlack DiamondCity Tax2.4%
CountyKingCounty Tax0%
Special Tax0%
Total Sales Tax8.9%

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