Link light rail is a light rail system with some rapid transit characteristics that serves the Seattle metropolitan area in the U.S. state of Washington. It is managed by Sound Transit in partnership with local transit providers, and comprises three lines that total 63 miles (101 km) with 50 stations. The 1 Line and 2 Line travel on shared tracks from Lynnwood in Snohomish County to Seattle and split to serve other portions of King County. The 1 Line continues south to the Rainier Valley, Seattle–Tacoma International Airport, and Federal Way; the 2 Line crosses Lake Washington to the Eastside cities of Bellevue and Redmond. The T Line is disconnected from the other lines and operates as a streetcar for 4 miles (6.4 km) in Tacoma. In 2025, the system had a ridership of 39.1 million, or about 117,200 per weekday as of the first quarter of 2026, primarily on the 1 Line. Trains run at frequencies of 4 to 20 minutes.