You can find your polling place by utilizing your state resource.
Even though Washington is a vote-by-mail state, you can still receive in-person services. Each county will have a voting center, at which you can register to vote, receive a replacement ballot, use an accessible voting unit, and more. Voting centers are open during normal business hours beginning 18 days before the election and close promptly at 8 p.m. on Election Day. You can find your voting center here.