South Tacoma station is a commuter rail station in Tacoma, Washington, United States, served by Line S of the Sounder commuter rail network. It is located near the Tacoma Mall along South Tacoma Way at South 56th Street and consists of a single platform and a 220-stall park-and-ride lot. Construction on the station began in early 2008 and the park-and-ride lot opened in February 2009, with service from a temporary express bus that operated until Sounder service began in October 2012.