Washington sales tax rate by county
Washington sales tax runs from 7.6% to 10.7%, and in 32 of its 39 counties the rate changes within the county. The 6.5% state rate applies everywhere. Everything above it depends on which city or special district an address falls in, so a county-wide figure is a range and not a rate.
Sales tax rate in every Washington county
Collected from Washington's own agency sources and verified September 9, 2026. A range means the rate genuinely differs by address inside that county, not that we are unsure. Each county page gives the components and what the rate does not cover.
Why some counties show a range
Sales tax is levied by the state, sometimes by the county, and very often by cities and special districts whose boundaries ignore county lines. Where that happens there is no single county rate to publish, so these pages give the lowest and highest totals found inside the county and link the state's own address lookup. Adding a state rate to a county rate does not reproduce those totals, because the districts levy in between.
More on Washington tax
See Washington sales tax for the statewide picture, exemptions and who has to collect. For property tax, which is a separate tax with separate rules, see property tax by county in Washington.