Wa King County Sales Tax Rate - What Is Not A Physical Security Measure For Your Homelogout Download the latest list of location codes and tax rates grouped by county. Use our local tax rate lookup tool to search for rates at a specific address or area in washington. Use this search tool to look up sales tax rates for any location in washington. To calculate sales and use tax only. King county, located in central western washington, has sales tax rates ranging from 8. 80% to 10. 50%.
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