Shin-Okubo

Weekday departures: 1,140/day · Sat & holiday departures: 507/day

First / last departure (weekday): 4:40 / 24:47 (00:47 next day)

Busiest hour: 14:00–15:00 (80)

0:00 ─ 23:00

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

Timetable data as of 3 May 2026.

• JR Yamanote Line: Takadanobaba ⇄ Shinjuku

Shin-Ōkubo Station opened on 15 November 1914 as a passenger-only station on the Railway Board's Yamanote Line. It passed to JR East at JNR's privatisation on 1 April 1987, and automatic ticket gates were installed on 28 October 1992. On 26 January 2001 the Shin-Ōkubo Station passenger-fall accident occurred inside the station; JR East subsequently fitted fall-detection mats and added steps and refuge spaces beneath the platform, with construction of the refuges starting on 21 June 2001 and the refuges completed and shown to the press on 22 December the same year. Suica IC cards were accepted from 18 November 2001, and the Midori no Madoguchi ticket office closed on 23 January 2009. A lift entered service on 9 February 2020, and station operations were contracted out on 1 December 2020. The station has a single island platform serving two tracks on a viaduct and is one of only two Yamanote Line stops — along with Mejiro — served by no other line; its number is JY 16.

The passenger-fall accident inside Shin-Ōkubo Station on 26 January 2001 led JR East to fit fall-detection mats and to build steps and refuge spaces beneath the platform edge; construction of the refuges began on 21 June 2001 and they were completed and shown to the press on 22 December 2001.