# Toei Shinjuku Line

The Toei Shinjuku Line (都営地下鉄新宿線, Toei Chikatetsu Shinjuku-sen) is a rapid transit line in Tokyo and Chiba Prefecture, Japan, operated by Tokyo Metropolitan Bureau of Transportation (Toei). The line runs between Motoyawata in Ichikawa, Chiba in the east and Shinjuku in the west. At Shinjuku, most trains continue as through services to Sasazuka on the Keiō New Line, with some services continuing to Hashimoto in Sagamihara, Kanagawa via the Keiō Line and the Keiō Sagamihara Line.
On maps and signboards, the line is shown in the color leaf green. Stations carry the letter "S" followed by a two-digit number inside a yellow-green chartreuse circle.

## Basic data

* Double-tracking: Entire line
* Railway signalling: D-ATC

## Overview

Unlike all other Tokyo subway lines, which were built to 1,435 mm (4 ft 8+1⁄2 in) or 1,067 mm (3 ft 6 in) gauges, the Shinjuku line was built with a track gauge of 1,372 mm (4 ft 6 in) to allow through operations onto the Keiō network. The line was planned as Line 10 according to reports of a committee of the former Ministry of Transportation; thus the rarely used official name of the line is the "Number 10 Shinjuku Line" (10号線新宿線, Jū-gō-sen Shinjuku-sen).
According to the Tokyo Metropolitan Bureau of Transportation, as of June 2009 the Shinjuku Line was the third most crowded subway line in Tokyo, at its peak running at 181% capacity between Nishi-ōjima and Sumiyoshi stations.
It is the only Toei line to run outside Tokyo, and one of only two Tokyo subway lines to run into Chiba Prefecture, the other being the Tokyo Metro Tozai Line. The Tokyo Metro Yūrakuchō Line and the Tokyo Metro Fukutoshin Line are the only other subway lines to run beyond Tokyo, with their shared northern terminus at Wakōshi Station in Saitama Prefecture. All lines that have through services contain at least one route beyond Tokyo, however.

## Station list

* Express trains stop at stations marked with a circle (●), while local trains make all stops.
* Express trains run between Motoyawata Station and Hashimoto Station on the Keiō Sagamihara Line via the Keio Main Line and Keio New Line. Express trains only run during peak hours; westbound in the mornings and eastbound in the evenings.
* On weekends and holidays, two trains run through to Takaosanguchi Station on the Keiō Takao Line and one runs through to Tama-Dōbutsukōen Station on the Keiō Dōbutsuen Line.
| No. | Station | Japanese | Distance (km) | Distance (km) | Express | Transfers | Location | Location |
| No. | Station | Japanese | Between stations | From S-01 | Express | Transfers | Location | Location |
| Through-running to/from Keiō-hachiōji, Hashimoto, and Takaosanguchi via the Keiō Line, Keiō New Line, Keio Sagamihara Line, and Keiō Takao Line |||||||||
| S01 | Shinjuku | 新宿 | - | 0.0 | ● | M Marunouchi Line (M-08) E Ōedo Line (E-27) JC Chūō Line (Rapid) JB JR Chūō-Sōbu Line JY JR Yamanote Line JA JR Saikyō Line JS Shōnan-Shinjuku Line OH Odakyū Odawara Line KO Keiō Line, Keiō New Line Seibu Shinjuku Line (Seibu-Shinjuku: SS-01) | Shinjuku | Tokyo |
| S02 | Shinjuku-sanchome | 新宿三丁目 | 0.8 | 0.8 | ｜ | M Marunouchi Line (M-09) F Fukutoshin Line (F-13) | Shinjuku | Tokyo |
| S03 | Akebonobashi | 曙橋 | 1.5 | 2.3 | ｜ | | Shinjuku | Tokyo |
| S04 | Ichigaya | 市ヶ谷 | 1.4 | 3.7 | ● | Y Yūrakuchō Line (Y-14) N Namboku Line (N-09) JB Chūō-Sōbu Line | Chiyoda | Tokyo |
| S05 | Kudanshita | 九段下 | 1.3 | 5.0 | ｜ | Z Hanzōmon Line (Z-06) T Tozai Line (T-07) | Chiyoda | Tokyo |
| S06 | Jimbocho | 神保町 | 0.6 | 5.6 | ● | I Mita Line (I-10) Z Hanzōmon Line (Z-07) | Chiyoda | Tokyo |
| S07 | Ogawamachi | 小川町 | 0.9 | 6.5 | ｜ | M Marunouchi Line (Awajicho: M-19) C Chiyoda Line (Shin-ochanomizu: C-12) | Chiyoda | Tokyo |
| S08 | Iwamotocho | 岩本町 | 0.8 | 7.3 | ｜ | H Hibiya Line (Akihabara: H-16) JB Chūō-Sōbu Line (Akihabara) JY Yamanote Line (Akihabara) JK Keihin-Tōhoku Line (Akihabara) Tsukuba Express (Akihabara: 01) | Chiyoda | Tokyo |
| S09 | Bakuro-yokoyama | 馬喰横山 | 0.8 | 8.1 | ● | A Asakusa Line (Higashi-nihombashi: A-15) JO Sōbu Line (Rapid) (Bakurochō) | Chūō | Tokyo |
| S10 | Hamacho | 浜町 | 0.6 | 8.7 | ｜ | | Chūō | Tokyo |
| S11 | Morishita | 森下 | 0.8 | 9.5 | ● | E Ōedo Line (E-13) | Kōtō | Tokyo |
| S12 | Kikukawa | 菊川 | 0.8 | 10.3 | ｜ | | Sumida | Tokyo |
| S13 | Sumiyoshi | 住吉 | 0.9 | 11.2 | ｜ | Z Hanzōmon Line (Z-12) | Kōtō | Tokyo |
| S14 | Nishi-ojima | 西大島 | 1.0 | 12.2 | ｜ | | Kōtō | Tokyo |
| S15 | Ojima | 大島 | 0.7 | 12.9 | ● | | Kōtō | Tokyo |
| S16 | Higashi-ojima | 東大島 | 1.2 | 14.1 | ｜ | | Kōtō | Tokyo |
| S17 | Funabori | 船堀 | 1.7 | 15.8 | ● | | Edogawa | Tokyo |
| S18 | Ichinoe | 一之江 | 1.7 | 17.5 | ｜ | | Edogawa | Tokyo |
| S19 | Mizue | 瑞江 | 1.7 | 19.2 | ｜ | | Edogawa | Tokyo |
| S20 | Shinozaki | 篠崎 | 1.5 | 20.7 | ｜ | | Edogawa | Tokyo |
| S21 | Moto-Yawata | 本八幡 | 2.8 | 23.5 | ● | JB Chūō-Sōbu Line KS Keisei Main Line (Keisei Yawata) | Ichikawa, Chiba | Ichikawa, Chiba |
* ↑ Shinjuku Station is shared with and administered by Keio Corporation.

## Rolling stock

The Toei Shinjuku Line is served by the following types of 10-car EMUs. Until 11 August 2022, the line was also served by 8-car trains.

### Current

* Toei 10-300 series
* Keio 5000 series
* Keio 9000 series
* Toei 10-300 series EMU
* Keio 9000 series EMU
* Keio 5000 series EMU

### Former

* Toei 10-300R series (until 2017)
* Toei 10-000 series (until 2018)
* Keio 6000 series (until 2011)

## History

* 21 December 1978: Iwamotochō – Higashi-ōjima section opens.
* 16 March 1980: Shinjuku – Iwamotochō section opens; through service onto Keiō lines begins.
* 23 December 1983: Higashi-ōjima – Funabori section opens.
* 14 September 1986: Funabori – Shinozaki section opens.
* 19 March 1989: Shinozaki – Motoyawata section opens, entire line completed.