Nishi-Kokubunji

Weekday departures: 1,127/day in the available timetable data · Sat & holiday departures: 577/day in the available timetable data

Earliest / latest departure in the available data (weekday): 4:37 / 24:44 (00:44 next day)

Busiest hour in the available data: 7:00–8:00 (80)

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 4 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: JR Musashino Line

Lines where the timetable data is incomplete:

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

• Chuo Main Line: Kokubunji ⇄ Kunitachi
• JR Musashino Line: Shin-Kodaira ⇄ Kita-Fuchu

Nishi-Kokubunji Station opened on 1 April 1973 as Japanese National Railways inaugurated the orbital Musashino Line, with the new stop slotted into the Chūō Main Line cutting at right angles to provide the planned interchange. JNR had intended a two-island, four-track Chūō layout from the outset, but a holdout on the planned site forced opening with only two side platforms. The station passed to JR East at the 1987 nationwide breakup. Automatic ticket gates entered service on 28 July 1992, Suica was accepted from 18 November 2001, and the nonowa Nishi-Kokubunji retail concourse fully opened on 13 September 2012. The Midori no Madoguchi staffed window closed on 31 October 2021.

On 4 April 2022 the up-bound Chūō Line platform welcomed Aoi Clinic — Nishi-Kokubunji Station Platform Branch — billed as the first medical practice opened directly on a railway platform anywhere in Japan.