Musashi-Kosugi

Weekday departures: 1,617/day in the available timetable data · Sat & holiday departures: 1,045/day in the available timetable data

Earliest / latest departure in the available data (weekday): 4:40 / 24:38 (00:38 next day)

Busiest hour in the available data: 8:00–9:00 (132)

0:00 ─ 23:00

Figures are typical departures in the timetable data, not a live service count.

Timetable data as of 2 May 2026 to 13 May 2026: the timetables behind these figures were retrieved on different dates.

The timetable data is incomplete for some or all lines at this station, so the weekday and Sat & holiday figures are departures in the available timetable data, not totals.

Lines where the timetable data is complete: Tokyu Toyoko Line, JR Nambu Line Hamakawasaki Branch

Lines where the timetable data is incomplete:

• Tokaido Main Line: timetable covers only part of the line

• Tokyu Toyoko Line: Shin-maruko
• Tokaido Main Line: Nishi-Oi ⇄ Shin-Kawasaki
• JR Nambu Line Hamakawasaki Branch: Musashi-Nakahara ⇄ Mukaigawara

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 side platform serving Yokosuka Line track 3 was placed in service on 18 December 2022.

Ridership at Musashi-Kosugi Station rose sharply around the 2010 opening of the Yokosuka Line platforms, and the section from Musashi-Kosugi to Nishi-Ōi ranked 4th worst in the 2016 Tokyo-area rail congestion rankings.