Tokyo Metro Namboku Line

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Tokyo Metro Namboku Line
Logo of Tokyo Metro Namboku Line.svg
A Namboku Line 9000 series train
Native name東京メトロ南北線
OwnerTokyo Metro
Rolling stockTokyo Metro 9000 series, Saitama Rapid Railway 2000 series, Tokyu 3000 series, Tokyu 5080 series
Daily ridership522,736 (2017)[1]
OpenedNovember 29, 1991
Line length21.3 km (13.2 mi)
Track gauge1,067 mm (3 ft 6 in)
Electrification1,500 V DC overhead catenary
Operating speed80 km/h (50 mph)
Route map

The Tokyo Metro Namboku Line (東京メトロ南北線, Tōkyō Metoro Namboku-sen, South-North Line) is a subway line owned and operated by Tokyo Metro in Tokyo, Japan. The line runs between Meguro in Shinagawa and Akabane-Iwabuchi in Kita. The Namboku Line was referred to as Line 7 during the planning stages, thus the seldom-used official name is Line 7 Namboku Line (7号線南北線, Nana-gō-sen Namboku-sen).

On maps, diagrams and signboards, the line is shown using the color emerald N (previously coded "teal"), and its stations are given numbers using the letter "N".


Trains run through onto the Tokyu Meguro Line for Hiyoshi and the Saitama Railway's Saitama Rapid Railway Line (which is essentially a separately-owned extension of the Namboku Line) for Urawa-Misono.

The right-of-way and stations between Shirokane-Takanawa and Meguro are shared with the Toei Mita Line – a unique situation on the Tokyo subway where both operators share common infrastructure. Under an agreement between Tokyo Metro and the Tokyo Metropolitan Government, the fare for this section is calculated on the Toei fare system for passengers traveling to stations on the Mita Line past Shirokane-Takanawa, on the Metro fare system for passengers traveling to stations on the Namboku Line past Shirokane-Takanawa, and on the system "most beneficial to the passenger" (presently the Metro schedule) for travel solely on the shared sector.

On maps, diagrams and signboards, the Namboku Line is shown using the color emerald (), and its stations are given numbers using the letter "N".

Station list[edit]

  • All stations are located in Tokyo.
  • All services stop at all stations.
Station Japanese Distance (km) Transfers Location
From N-01
Through-running to/from Hiyoshi via MG Tokyu Meguro Line
N01 Meguro 目黒[* 1] 0.0 Shinagawa
N02 Shirokanedai 白金台[* 2] 1.3 1.3 I Toei Mita Line (I-02) (shared) Minato
N03 Shirokane-takanawa 白金高輪[* 2] 1.0 2.3 I Toei Mita Line (I-03) (shared)
N04 Azabu-juban 麻布十番 1.3 3.6 E Toei Oedo Line (E-22)
N05 Roppongi-itchome 六本木一丁目 1.2 4.8  
N06 Tameike-sanno 溜池山王 0.9 5.7 Chiyoda
N07 Nagatacho 永田町 0.9 6.6
N08 Yotsuya 四ツ谷 1.3 7.9 Shinjuku
N09 Ichigaya 市ケ谷 1.0 8.9
N10 Iidabashi 飯田橋 1.1 10.0
N11 Korakuen 後楽園 1.4 11.4
N12 Todaimae 東大前 1.3 12.7  
N13 Hon-komagome 本駒込 0.9 13.6  
N14 Komagome 駒込 1.4 15.0 JY Yamanote Line Toshima
N15 Nishigahara 西ケ原 1.4 16.4   Kita
N16 Oji 王子 1.0 17.4
N17 Oji-kamiya 王子神谷 1.2 18.6  
N18 Shimo 志茂 1.6 20.2  
N19 SR19 Akabane-iwabuchi 赤羽岩淵[* 3] 1.1 21.3 SR Saitama Rapid Railway Line
Through-running to/from Urawa-Misono via the Saitama Rapid Railway Line
  1. ^ Meguro is shared by Toei, Tokyo Metro, and Tokyu Corporation; Tokyu Corporation manages the station.
  2. ^ a b Shirokanedai and Shirokane-Takanawa are shared by Toei and Tokyo Metro; Tokyo Metro manages both stations.
  3. ^ Akabane-iwabuchi is shared by Tokyo Metro and Saitama Rapid Railway; Tokyo Metro manages the station.

Rolling stock[edit]



The 21.3 km Namboku Line is one of Tokyo Metro's newer lines, featuring advanced technology including full automatic train operation and platform screen doors. Although the line was originally proposed in 1968, construction did not begin until the 1980s, partly due to the right-of-way to Meguro with the Toei Mita Line. The first segment from Komagome to Akabane-Iwabuchi opened on November 29, 1991.

The line initially operated with four-car EMUs. Upon its extension to Yotsuya in March 1996, the formations were extended to six cars. On 1 April 2022, eight-car trains began operating on the line.[2]

The extension to Tameike-Sannō was completed in September 1997, and the last stretch from Tameike-Sanno to Meguro was completed on September 26, 2000, when through service to the Tokyu Meguro Line started. Through service with the Saitama Rapid Railway Line commenced when it opened in March 2001 and accommodated traffic to and from Saitama Stadium during the 2002 World Cup. Although the Saitama Line is more or less a northern extension of the Namboku Line, it nevertheless remains a private entity to which the Namboku Line offers through services with.

The Namboku Line was inherited by Tokyo Metro after the privatization of the Teito Rapid Transit Authority (TRTA) in 2004.[3]

Future plans[edit]

On 28 January 2022, Tokyo Metro announced that a 2.5 km (1.6 mi) spur line from Shirokane-takanawa to Shinagawa would be built.[4] The extension is expected to cost ¥131 billion (2021) (US$1.23 billion) and scheduled to begin revenue service in the mid-2030s. It is intended to increase connections to and from the Chūō Shinkansen, which is scheduled to open for service in 2027.


  • Shaw, Dennis and Morioka, Hisashi, "Tokyo Subways", published 1992 by Hoikusha Publishing
  1. ^ Tokyo Metro station ridership in 2017 Train Media (sourced from Tokyo Metro) Retrieved July 23, 2018.
  2. ^ a b 東急目黒線・東京メトロ南北線・埼玉高速鉄道線で8両編成の運転開始 [8-car trains begin operating on the Tokyu Meguro Line, Tokyo Metro Namboku Line, and Saitama Rapid Railway Line]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 9 April 2022. Retrieved 27 May 2022.
  3. ^ "「営団地下鉄」から「東京メトロ」へ" [From "Teito Rapid Transit Authority" to "Tokyo Metro"]. Tokyo Metro Online. 8 July 2006. Archived from the original on 16 May 2012. Retrieved 29 May 2022.
  4. ^ "有楽町線延伸(豊洲・住吉間)及び南北線延伸(品川・白金高輪間)の鉄道事業許可を申請しました。" [Yurakucho Line extension (between Toyosu and Sumiyoshi) and Namboku Line extension (between Shinagawa and Shirokane Takanawa) application for a Business Permit] (PDF). Tokyo Metro (in Japanese). 28 January 2022. Retrieved 28 January 2022.

External links[edit]