Seattle: Ridership and operating-distance trends of Sounder Commuter Rail May 7, 2026 | Data & Statistics Sounder is a rail service in the Puget Sound region in Washington state. It is operated by Sound Transit. The network connects Seattle with cities such as Tacoma, Everett, and Lakewood. It operates on... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password