King Street–Old Town station

King Street–Old Town station (also known by its former name, King Street) is a Washington Metro station in Alexandria, Virginia, United States. The station opened on December 17, 1983, and is operated by the Washington Metropolitan Area Transit Authority (WMATA). Providing service for both the Blue and Yellow Lines, this is the southernmost transfer station for the Blue and Yellow lines, as the two lines diverge just south of the station. During inclement weather, Crystal City is commonly used as an unofficial transfer point, being the southernmost underground station common to both lines . King Street was originally served only by the Yellow Line, until the Blue Line was extended from National Airport to Van Dorn Street in 1991.

The station is located at King Street and Commonwealth Avenue. Entrances to the station are located on King Street and on the Diagonal Road side of the station. The station has an elevated island platform over King Street west of Diagonal Road. Two fare control areas on either side of King Street provide escalator and elevator access to the platform.