History
Musashi-Kosugi Station traces its JR-side origins to the Ground-mae stop opened on 1 November 1927 between Mukaigawara and Musashi-Nakahara on the Nambu Railway; it was upgraded to a full station and renamed Musashi-Kosugi on 1 April 1944 when the line was nationalised. On the Tōkyū side, Kōgyō-Toshi opened in 1939 and a separate Musashi-Kosugi was opened on 16 June 1945 at the crossing with the Nambu Line; the two Tōkyū stations were consolidated on 31 March 1953. JR East inherited the JNR station with privatisation on 1 April 1987. Suica acceptance began on 18 November 2001. New Yokosuka Line and Shōnan-Shinjuku Line platforms opened on 13 March 2010 between Shin-Kawasaki and Nishi-Ōi, and a formal connecting passage to the Nambu Line platforms followed on 25 June 2011. Sōtetsu through-running began on 30 November 2019, and a new third Yokosuka Line platform was placed in service on 18 December 2022.
History summarized from Japanese & English Wikipedia · last reviewed 2026-05-18.