Kanto Region, Japan

Comprising the Tokyo Metropolitan Area and including the prefectures of Tokyo, Kanagawa, Chiba, Saitama, Gunma, Tochigi, and Ibaraki, the Kanto Region is a multinodal metropolitan area on the southeastern coast of Japan, including Tokyo, Yokohama, Kawasaki, Sagamihara, Saitama, Chiba, Takasaki, Utsunomiya, and dozens of other smaller cities. The Kanto Region comprised 43,653,441 residents as of the 2020 Statistics Bureau of Japan estimate.

The Kanto Region's higher order transit network, not including those within cities themselves, consists of a sprawling web of railways operated by JR East and dozens of private and third sector companies.

JR East (JR東日本) - Inner Suburban

Dating back to the first railway in Japan in 1872, JR East operates a sprawling web of lines out of and around Tokyo. All inner suburban lines are given line icons and station numbering starting with J followed by a letter.

Chūō Main Line (中央本線), Ōme Line (青梅線), & Itsukaichi Line (五日市線)

The inner suburban portion of the Chūō Main Line is an S-Train network on an east-west alignment. It runs from Takao in the west to Shinjuku and Tōkyō in the east, serving 24 stations. From Takao, additional services travel to Ōtsuki and beyond out of the Kantō Region towards Kōfu, Matsumoto, and Nagano. Branching from the Chūō Main Line is the Ōme Line, a S-Train and commuter rail line running from Okutama and Ōme in the west to Tachikawa in the east, serving 25 stations. The section west of Ōme is rural and receives limited service. Branching from the Ōme Line is the Itsukaichi Line, a regional rail line running from Musashi-Itsukaichi in the west to Haijima in the east, serving 7 stations with limited through service onto the Ōme Line.

The Chūō Main Line was opened in April 1889, reaching Ōtsuki in October 1902 and Tōkyō in March 1919. The Ōme Line was opened in 1894 and the last extension was to Okutama in July 1944. The Itsukaichi Line was opened in 1925 and the last expansion was the opening of Kumagawa in May 1931.

Chūō-Sōbu Line (中央・総武線)

The Chūō-Sōbu Line is a metro service on an east-west alignment. It runs from Mitaka in the west to Chiba in the east, serving 39 stations. It has through service onto the Tokyo Metro Tōzai Line between Nakano and Mitaka and between Nishi-Funabashi and Tsudanuma.

The Chūō-Sōbu Line was opened in 1932 with the operation of the first dedicated local tracks between Ochanomizu and Nakano. The last expansion to the line was the completion of dedicated local tracks to Chiba in 1981.

Jōban Line (常磐線)

The inner suburban portion of the Jōban Line is an S-Train network on a southwest-northeast alignment. It runs from Shinagawa or Ueno (rapid)/Ayase (local) in the southwest to Abiko or Toride (local)/Tsuchiura or Katsuta in the northeast, serving 14 stations on the local service and 25 stations on the rapid (excluding the limited service Kairakuen and not including the stations between Shinagawa and Ueno on the Ueno-Tōkyō Line). From Mito, additional services travel to Takahagi and beyond out of the Kantō Region towards Iwaki and Sendai. The formal terminus of the line is at Nippori. Some Jōban Rapid trains through-operate onto the Abiko branch of the Narita Line. Local services terminate at Abiko outside of weekday rush hour and do not continue to Toride.

The Jōban Line was opened in January 1889 between Mito and Oyama, reaching Nippori in April 1905. The last expansion in the Kanto area was the opening of Hitachino-Ushiku in March 1998. The Jōban Local Line was opened in April 1971 and the last expansion to the line was the completion of dedicated local tracks to Toride in November 1982.

Keihin-Tōhoku Line (京浜東北線) & Negishi Line (根岸線)

The Keihin-Tōhoku Line is an urban mainline rail service on a north-south alignment. It runs from Ōmiya in the north to Yokohama in the south, serving 36 stations. It is operationally unified with the Negishi Line, an urban mainline rail service on a northeast-southwest alignment. It runs from Yokohama in the northeast to Ōfuna in the southwest, serving 12 stations. Yokohama Line trains sometimes through-operate onto the Keihin-Tōhoku Line and Negishi Line south of Higashi-Kanagawa to Sakuragichō and less frequently to Ōfuna.

The Keihin-Tōhoku Line was opened in December 1914. The last expansion to the line was the opening of Takanawa Gateway in March 2020. The Negishi Line dates back to the first railway line in Japan, with the current Yokohama to Sakuragichō section opened in June 1872. The Negishi Line proper was opened in May 1964 and the last extension was to Ōfuna in April 1973.

Keiyō Line (京葉線)

The Keiyō Line is an urban mainline rail line on an east-west alignment. It runs from Tōkyō in the west to Soga, serving 19 stations. While Nishi-Funabashi is technically on the Keiyō Line, on the above strip map and on the website as a whole we are treating it as part of the Musashino Line as that is how it is operated and branded to passengers. Musashino Line through services operate to Tōkyō and Kaihimmakuhari via the wye between Ichikawashiohama and Minami-Funabashi. East of Soga, some trains through operate onto the Uchibō and Sotobō Lines.

The Keiyō Line was opened in May 1975. The last expansion to the line was the opening of Makuhari-Toyosuna in March 2023.

Musashino Line (武蔵野線)

The Musashino Line is an urban mainline rail line on a semicircular alignment. It runs from Fuchūhommachi in the west to Nishi-Funabashi in the east, serving 26 stations. Musashino Line through services operate to Tōkyō and Kaihimmakuhari via the wye between Ichikawashiohama and Minami-Funabashi. There is no scheduled passenger service on the freight-only portion of the line south of Fuchūhommachi.

The Musashino Line was opened in April 1973. The last expansion to the line was the opening of Yoshikawaminami in March 2012.

Nambu Line (南武線)

The Nambu Line is an urban mainline rail line on a northwest-southeast alignment. It runs from Tachikawa in the northwest to Kawasaki in the southeast, serving 26 stations. There is also a short branch from Shitte to Hama-Kawasaki operating as a commuter rail service, serving 4 additional stations. Note that on the strip map we include this under the Kawasaki branch but geographically, they are the other way around.

The Nambu Line was opened in March 1927. The last expansion to the line was the opening of Odasakae in March 2016.

Saikyō Line (埼京線), Kawagoe Line (川越線), and Sōtetsu–JR Link Line (相鉄・JR直通線)

The Saikyō Line is an urban mainline rail service on a north-south alignment. It runs from Ōmiya in the north to Ōsaki in the south via the Tōhoku Main Line Branch Line (Ōmiya to Akabane), Akabane Line (Akabane to Ikebukuro), and Yamanote Freight Line (Ikebukuro to Ōsaki), serving 19 stations. In the north, the Saikyō Line through operates onto the eastern portion of the Kawagoe Line, an urban mainline rail line on an east-west alignment. It runs from Kawagoe in the west to Ōmiya in the east, serving 11 stations. In the south, the Saikyō Line through operates onto the Rinkai Line, as well as onto the Sōtetsu–JR Link Line (sharing stations with the Shōnan-Shinjuku Line from Ikebukuro and Yokosuka Line from south of Ōsaki).

The Saikyō Line was opened as a dedicated service with the opening of the Tōhoku Main Line Branch Line between Ōmiya and Akabane in September 1985. The eastern part of the Kawagoe Line opened in July 1940 and the last expansion to the line was the opening of Nishi-Ōmiya in March 2009. The Sōtetsu–JR Link Line began operation in November 2019.

Shōnan-Shinjuku Line (湘南新宿ライン)

The Shōnan-Shinjuku Line is a S-Train service grouping on a north-south alignment. It runs from Ōmiya in the north to Zushi in the south via the Tōhoku Freight Line (Ōmiya to Ikebukuro), Yamanote Freight Line (Ikebukuro to Ōsaki), Hinkaku Line (Ōsaki to Yokohama), and Yokosuka Line (Yokohama to Zushi), serving 19 stations. In the north, trains through operate onto both the Utsunomiya and Takasaki Lines, while in the south some trains branch off at Ōfuna to through operate onto the Tōkaidō Main Line.

The Shōnan-Shinjuku Line was opened as a dedicated service in December 2001.

Sōbu Main Line (総武本線) & Narita Line (成田線)

The inner suburban portion of the Sōbu Main Line is an S-Train network on an east-west alignment. It runs from Tōkyō in the west to Sakura in the east, serving 15 stations. From Chiba, through services operate onto the Sotobō Line towards Kazusa-Ichinomiya, as well as onto the Uchibō Line towards Kimitsu. From Sakura to Narita, the portion of the Narita Line to Narita Airport is operated primarily via Sōbu Rapid through services, serving 4 additional stations. Some services continue onto the Sōbu Main Line at Sakura. Most trains continue past Tōkyō with through service onto the Yokosuka Line. The Sōbu Main Line continues past Sakura, with 16 additional stations, though most services terminate at Naruto.

The Sōbu Main Line was opened in July 1894, with the reroute into the new underground Tōkyō station in July 1972 and through service to the Yokosuka Line beginning 1975.

Tōhoku Main Line (東北本線)/Utsunomiya Line (宇都宮線), Takasaki Line (高崎線), & Ueno-Tōkyō Line (上野東京ライン)

The inner suburban portion of the Tōhoku Main Line, also known as the Utsunomiya Line is an S-Train network on a north-south alignment. It runs from Tōkyō in the south via the Ueno-Tōkyō Line to Kuroiso in the north, serving 34 stations. From Ōmiya, Takasaki Line trains branch off, serving 19 stations with through service onto the Jōetsu Line to Shibukawa and through service onto the Ryōmō Line to Maebashi. Most trains continue past Tōkyō with through service onto the Tōkaidō Main Line. Shōnan-Shinjuku Line trains north of Ōmiya through operate onto both the Utsunomiya Line and Takasaki Line. Select Jōban Line Rapid trains utilize the Ueno-Tōkyō Line to go as far as Shinagawa in the south from Ueno.

The Tōhoku Main Line was opened in July 1883, with the latest expansion being the opening of Higashi-Ōmiya in 1983. The Takasaki Line opened in July 1883 as well, with the latest expansion being the opening of Kita-Kōnosu in 1984. The Ueno-Tōkyō Line opened in March 2015, re-extending services to Tōkyō and re-enabling through service onto the Tōkaidō Main Line.

Tsurumi Line (鶴見線)

The Tsurumi Line is a commuter rail line on a northwest-southeast alignment. It runs from Tsurumi in the northwest to Ōgimachi, Umi-Shibaura, and Ōkawa in the southeast, serving 14 stations.

The Tsurumi Line was opened in March 1926. The last expansion to the line was the opening of Umi-Shibaura in November 1940.

Tōkaidō Main Line (東海道本線) & Itō Line (伊東線)

The inner suburban portion of the Tōkaidō Main Line is an S-Train network on an east-west alignment. It runs from Atami in the west to Tōkyō in the east, serving 21 stations. From Atami, some trains through-operate onto the Itō Line or towards Numazu in JR Central territory. Most trains continue past Tōkyō with through service onto the Utsunomiya and Takasaki Lines. Shōnan-Shinjuku Line trains west of Ōfuna through operate onto the line. Select Jōban Line Rapid trains utilize the Ueno-Tōkyō Line to go as far as Shinagawa in the south from Ueno.

The Itō Line is a commuter rail line on a north-south alignment. It runs from Atami in the north to Itō in the south, serving 6 stations. Some trains through-operate onto the Izukyū Railway in the south and onto the Tōkaidō Main Line in the north.

The Tōkaidō Main Line was opened in October 1872, with the latest expansion being the opening of Shin-Koyasu in November 1943. The Ueno-Tōkyō Line opened in March 2015, re-extending services past Tōkyō and re-enabling through service onto the Tōhoku Main Line. The Itō Line opened in March 1935, with the latest expansion being the extension to Itō in December 1938.

Yamanote Line (山手線)

The Yamanote Line is an urban mainline rail service on a loop alignment. It runs from Tōkyō in the east to Ōsaki in the south and Ikebukuro in the northwest, serving 30 stations. Formally speaking, only the portion between Tabata and Shinagawa is the Yamanote Line, with services using dedicated local tracks on the Tōhoku Main Line and Tōkaidō Main Line on the eastern portion of the loop.

The Yamanote Line was opened in March 1885, with loop service beginning in 1925. The last expansion to the line was the opening of Takanawa Gateway in March 2020.

Yokohama Line (横浜線)

The Yokohama Line is an urban mainline rail line on a northwest-southeast alignment. It runs from Hachiōji in the northwest to Higashi-Kanagawa in the southeast, serving 20 stations. Most services continue onto the Keihin-Tōhoku and Negishi Lines to Sakuragichō, with a few continuing to Ōfuna.

The Yokohama Line was opened in September 1908. The last expansion to the line was the opening of Hachiōji-Minamino in April 1997.

Yokosuka Line (横須賀線)

The Yokosuka Line is an S-Train line on a northeast-southwest alignment. It runs from Tōkyō in the northeast to Kurihama in the southwest, serving 19 stations. Through services operate onto the Sōbu Rapid Line. Note that technically speaking, only the portion of the line south of Ōfuna is the Yokosuka Line proper.

The Yokosuka Line was opened in June 1889. The last expansion to the line was the opening of Nishi-Ōi in April 1986.

JR East (JR東日本) - Outer Suburban

Aside from the inner suburban services and their through operations, JR East also operates a network of regional and intercity rail lines around the Greater Kanto region.

Agatsuma Line (吾妻線)

The Agatsuma Line is a commuter rail line on an east-west alignment. It runs from Ōmae in the west to Shibukawa in the east, serving 18 stations. Through services operate onto the Jōetsu Line. Most services only run as far as Naganoharakusatsuguchi.

The Agatsuma Line was opened in January 1945. The last expansion to the line was the opening of Onogami-Onsen in March 1992.

Hachikō Line (八高線) & Kawagoe Line (川越線)

The Hachikō Line is a regional and commuter rail line on a north-south alignment. It runs from Hachiōji in the south to Kuragano in the north, serving 23 stations. It is split into two sections - the electrified portion from Hachiōji to Komagawa and the diesel portion from there to Kuragano. Through services on the southern electrified portion operate onto the western part of the Kawagoe Line, a regional rail line on an east-west alignment. It runs from Komagawa in the west to Kawagoe in the east, serving 6 stations. All services on the diesel portion through operate one stop further to Takasaki, so we have included it on the strip map. Around 1/3 of trains on the diesel portion only go as far as Ogawamachi.

The Hachikō Line was opened in July 1931. The last expansion to the line was the opening of Kita-Fujioka in February 1961. The western portion of the Kawagoe Line opened in July 1940.

Jōetsu Line (上越線)

The inner suburban portion of the Jōetsu Line is a commuter rail line on a north-south alignment. It runs from Miyauchi in the north to Takasaki in the south, serving 34 stations. Only the suburban portion south of Minakami is shown on our strip map. Agatsuma, Ryōmō, and Takasaki Line through services use the southern part of the line to reach both Takasaki and Shim-Maebashi - Takasaki Line through service is not shown on the strip map.

The Jōetsu Line was opened in 1884. The last expansion to the line was the opening of Takasakitonyamachi in October 2004.

Karasuyama Line (烏山線)

The Karasuyama Line is a commuter rail line on an east-west alignment. It runs from Hōshakuji in the west to Karasuyama in the east, serving 8 stations. Through services operate onto the Utsunomiya Line, with all services running to Utsunomiya, so we have included it on the strip map.

The Karasuyama Line was opened in April 1923. The last expansion to the line was the opening of Taki in June 1954.

Kashima Line (鹿島線)

The Kashima Line is a commuter rail line on a northeast-southwest alignment. It runs from Kashima Soccer Stadium (game days only) and Kashimajingū in the northeast to Katori in the southwest, serving 5 stations. Through services operate onto the Narita Line, with all services running to Sawara, so we have included it on the strip map.

The Kashima Line was opened in August 1970.

Kururi Line (久留里線)

The Kururi Line is a commuter rail line on an east-west alignment. It runs from Kisarazu in the west to Kazusa-Kameyama in the east, serving 14 stations. Most services terminate at Kururi.

The Kururi Line was opened in December 1912. The last expansion to the line was the opening of Higashi-Kiyokawa in October 1978.

Mito Line (水戸線)

The Mito Line is a commuter rail line on an east-west alignment. It runs from Oyama in the west to Tomobe in the east, serving 16 stations. Some services through-operate onto the Jōban Line to Mito or Katsuta.

The Mito Line was opened in January 1889. The last expansion to the line was the opening of Tamado in June 1988.

Narita Line (成田線)

The Narita Line is a regional and commuter rail line on an east-west alignment. The Abiko Branch Line runs from Abiko in the west to Narita in the east, serving 10 stations with through service onto the Jōban Line Rapid. The main line (north of Narita) runs from Narita in the west to Matsugishi in the east, serving 14 stations. See the section for the Sōbu Line Rapid for information on the section of the Narita Line between Sakura and Narita. As all trains continue past Matsugishi to Chōshi on the Sōbu Main Line, we have included it on the strip map.

The Narita Line was opened in January 1897.

Nikkō Line (日光線)

The Nikkō Line is a commuter rail line on an northwest-southeast alignment. It runs from Nikkō in the northwest to Utsunomiya in the southeast, serving 7 stations.

The Nikkō Line was opened in June 1890. The last expansion to the line was the opening of Shimotsuke-Ōsawa in November 1929.

Ryōmo Line (両毛線)

The Ryōmō Line is a commuter rail line on an east-west alignment. It runs from Shim-Maebashi in the west to Oyama in the east, serving 19 stations. Some trains through operate onto the Jōetsu Line to Takasaki.

The Ryōmō Line was opened in August 1889. The last expansion to the line was the opening of Ashikaga Flower Park in April 2018.

Sagami Line (相模線)

The Sagami Line is a regional rail line on a north-south alignment. It runs from Chigasaki in the south to Hashimoto in the north, serving 18 stations.

The Sagami Line was opened in September 1921.

Shin'etsu Main Line (信越本線)

The Kantō portion of the Shin'etsu Main Line is a commuter rail line on an east-west alignment. It runs from Yokokawa in the west to Takasaki in the east, serving 9 stations.

The Shin'etsu Main Line was opened in 1885. Service over the Usui Pass past Yokokawa was severed in October 1997.

Sotobō Line (外房線)

The Sotobō Line is a regional and commuter rail line on a north-south alignment. It runs from Chiba in the north to Awa-Kamogawa in the south, serving 27 stations. On the north end, some services through-operate onto both the Sōbu Line Rapid and Keiyō Lines from Chiba and Sōga, respectively, and services through operate onto the Tōgane and Uchibō Lines at Ōami and Awa-Kamogawa, respectively. Most Tokyo-bound through services only go as far as Kazusa-Ichinomiya, with additional trains only running as far as Katsuura.

The Sotobō Line was opened in January 1896. The last expansion was the opening of Namegawa Island in July 1970.

Suigun Line (水郡線)

The Suigun Line is a commuter rail line on a north-south alignment. It runs from Mito in the south to Hitachi-Ōta and Asaka-Nagamori in the north, serving 45 stations. All services running towards Fukushima prefecture through operate onto the Tōhoku Main Line to reach Kōriyama. The strip map only shows service as far as Hitachi-Daigo as only a few trains operate all the way to Kōriyama each day.

The Suigun Line was opened in November 1897.

Tōgane Line (東金線)

The Tōgane Line is a commuter rail line on a northeast-southwest alignment. It runs from Naruto in the northeast to Ōami in the southwest, serving 5 stations. Trains through-operate onto the Sotobō Line past Ōami.

The Tōgane Line was opened in June 1900. The last expansion was the reopening of Fukutawara in October 1954.

Uchibō Line (内房線)

The Uchibō Line is a regional and commuter rail line on a north-south alignment. It runs from Soga in the north to Awa-Kamogawa in the south, serving 30 stations. On the north end, some services through-operate onto both the Sōbu Line Rapid and Keiyō Lines from Chiba and Sōga, respectively, and services through operate onto the Sotobō Lines at Awa-Kamogawa. Most Tokyo-bound through services only go as far as Kazusa-Minato, with additional trains only running as far as Tateyama. As all non-through services past Soga continue to Chiba, we have included it on the map even though it is technically part of the Sotobō Line.

The Uchibō Line was opened in January 1896. The last expansion was the opening of Namegawa-Island in July 1970.

Keihin Kyūkō/Keikyū (京浜急行)

Dating back to 1899, Keikyu consists of a S-Train network and an urban mainline rail line that serve the cities of Tokyo and Yokohama as well as the Miura Peninsula.

Keikyū Main Line (京急本線) and branches

The Keikyū Main Line is an S-Train line on a north-south alignment. It runs from Shinagawa (de facto Sengakuji) in the north to Uraga in the south, serving 50 stations. The Kurihama Line is an S-Train line on a north-south alignment. It runs from Horinouchi in the north to Misakiguchi in the south, serving 9 stations and acting as the de facto operational main line south of Horinouchi. In addition, the Zushi Line is a S-Train line on a northeast-southwest alignment. It runs from Kanazawa-hakkei in the northeast to Zushi·Hayama in the southwest, serving 4 stations. Local services typically operate as shuttles, but there is through service onto the Main Line.

The Keikyū Airport Line is an S-Train line on an east-west alignment. It runs from Keikyū Kamata in the west to Haneda Airport Terminals 1 and 2 in the east, serving 7 stations. It through-operates onto the Main Line but uses the track layout at Keikyū Kamata to through operate in both directions down the Main Line towards both Shinagawa and Yokohama. The Main Line and all branches, including the Airport Line, through-operate onto the Toei Asakusa Line via Sengakuji.

The Keikyū Main Line was opened in February 1901. The last expansion was the opening of Shimbamba in October 1976. The Kurihama Line was opened in December 1942. The last expansion was the extension to Misakiguchi in April 1975. The Zushi Line was opened in April 1930. The last expansion was the extension to Zushi·Hayama in February 1985. The Airport Line was opened in June 1902 as the Anamori Line. The last expansion was the opening of Haneda Airport Terminal 3 in October 2010.

Keikyū Daishi Line (京急大師線)

The Keikyū Daishi Line is an urban mainline rail line on an east-west alignment. It runs from Keikyū Kawasaki in the west to Kojimashinden in the east, serving 7 stations. It is operationally separate from the rest of the Keikyū network.

The Daishi Line opened in January 1899. The last expansion was the extension to Kojimashinden in October 1944.

Keiō (京王)

Dating back to 1913, Keiō consists of a S-Train network with two metro branches and an urban mainline rail line that serve the cities of Tokyo and Hachiōji as well as the southern portion of the Tama Region.

Keiō Line (京王線) and branches

The Keiō Line is an S-Train line on an east-west alignment. It runs from Shinjuku in the east to Keiō-hachiōji in the west, serving 32 stations. The Keiō New Line is a metro line on an east-west alignment. It runs from Shinjuku in the east to Sasazuka in the west, serving 4 stations. Through services between the Keiō Line and Toei Shinjuku Line use the Keiō New Line. On the strip map above, we show the New Line stations inline, but note that the equivalent stations on the Keiō Line have since been closed and are not served by trains terminating at Shinjuku. The Takao Line is an S-Train line on an east-west alignment, running from Kitano in the east to Takaosanguchi in the west, serving 7 stations and acting as the de facto operational main line west of Kitano. The Dōbutsuen Line is a regional rail line on a north-south alignment. It runs from Takahatafudō in the north to Tama-dōbutsukōen in the south, serving 2 stations primarily as a standalone shuttle service without through service onto the main line. The Keibajō Line is a regional rail line on a northeast-southwest alignment. It runs from Higashi-fuchū in the northeast to Fuchūkeiba-seimommae in the southwest, serving 2 stations. While it primarily operates as a standalone shuttle service, on game days there is through service onto the main line.

The Sagamihara Line is a metro line on an east-west alignment. It runs from Hashimoto in the west to Chōfu in the east, serving 12 stations. It through-operates onto the Main Line.

The Keiō Line was opened in April 1913, and the last extension was to Keiō-hachiōji in March 1925. The New Line opened in October 1978. The Takao Line opened in October 1967. The Dōbutsuen Line opened in April 1964. The Keibajō Line opened in April 1955. The Sagamihara Line opened in June 1916 as a single station stub to Keiō-tamagawa, and the last extension was to Hashimoto in March 1990.

Keiō Inokashira Line (京王井の頭線)

The Keiō Inokashira Line is an urban mainline rail line on an east-west alignment. It runs from Kichijōji in the west to Shibuya in the east, serving 17 stations. It is operationally separate from the rest of the Keiō network, and was part of Odakyū prior to its transfer to Keiō.

The Keiō Inokashira Line opened in August 1933. The last expansion was the opening of Komaba-tōdaimae in July 1965.

Keisei (京成) & co.

Dating back to 1912, Keisei consists of a S-Train and urban mainline rail network that serves the cities of Tokyo and Chiba as well as Narita Airport and other cities in northern Chiba Prefecture. Associated with it are its subsidiary the Hokusō Railway and the Shibayama Railway, which serves as an extension of the Keisei network.

Keisei Main Line (京成本線) and branches inc. Shibayama Railway (芝山鉄道線)

The Keisei Main Line is an S-Train line on an east-west alignment. It runs from Ueno in the west to Narita Airport Terminal 1 in the east, serving 42 stations. Two other branch lines compose parts of the line that used to be the main line - in the west, the Oshiage Line is an S-Train line on a northeast-southwest alignment. It runs from Aoto in the northeast to Oshiage in the southwest, serving 6 stations and through-operating onto both the Keisei Main Line and the Toei Asakusa Line. In the far east, the Keisei Higashi-Narita Line is a commuter rail line on an east-west alignment, running from Keisei Narita in the west to Higashi-Narita in the east, serving 2 stations and through-operating onto both the Keisei Main Line and the Shibayama Railway Line, though it primarily runs as a shuttle service. The Shibayama Railway Line is a commuter rail line on a northwest-southeast alignment. It runs from Higashi-Narita in the northwest to Shibayama-Chiyoda in the southeast, serving 2 stations as part of the Keisei Narita - Shibayama-Chiyoda service pattern.

The Keisei Main Line was opened in November 1912, and the last expansion was the opening of Narita Airport Terminal 2·3 in December 1992. The Oshiage Line was opened in November 1912 as part of the original Keisei Main Line, and the last expansion was the opening of Aoto in November 1928. The Higashi-Narita Line was opened in May 1978, with the Shibayama Railway Line opening in October 2002.

Keisei Kanamachi Line (京成金町線)

The Kanamachi Line is an urban mainline rail line on a north-south alignment. It runs from Keisei-Kanamachi in the north to Keisei-Takasago in the south, serving 3 stations. It operates independently of the rest of the Keisei network.

The Kanamachi Line was opened in October 1913.

Keisei Matsudo Line (京成松戸線), Keisei Chiba Line (京成千葉線), & Keisei Chihara Line (京成千原線)

The Keisei Chiba Line is an urban mainline rail line on a northwest-southeast alignment. It runs from Keisei-Tsudanuma in the northwest to Chiba Chūō in the southeast, serving 10 stations. Trains through-operate to the Matsudo Line past Keisei-Tsudanuma and some trains through-operate onto the Keisei Chihara Line in the southeast.

The Chihara Line, formerly the Chiba Rapid Railway Line, is a regional rail line on a northwest-southeast alignment. It runs from Chibachūō in the northwest to Chiharadai in the southeast, serving 6 stations. Trains through-operate to the Chiba Line.

The Matsudo Line, formerly the Shin-Keisei Line, is an urban mainline rail line on a northwest-southeast alignment. It runs from Matsudo in the northwest to Keisei-Tsudanuma in the southeast, serving 24 stations. Trains through-operate to the Chiba Line as far as Chibachūō.

The Keisei Chiba Line was opened in July 1921, and the last expansion was the opening of Keisei-Makuharihongō in August 1991. The Chihara Line opened in April 1992 as the Chiba Rapid Railway. The last expansion was to Chiharadai in April 1995. The line was absorbed into Keisei in October 1998. The Matsudo Line opened in December 1947 as the Shin-Keisei Line, and the last expansion was the opening of Shin-Kamagaya in March 1991. The line was absorbed into Keisei in April 2025.

Hokusō Line & Keisei Narita Airport Line (京成成田空港線)/Narita Sky Access (成田スカイアクセス)

The Hokusō Line is a regional rail line on an east-west alignment. It runs from Keisei-Takasago in the west to Imba-Nihon-idai in the east, serving 14 stations. Trains through-operate to the Keisei Main Line past Keisei-Takasago. While not directly under the control of Keisei, all trains use Keisei infrastructure to reach Tokyo.

The Keisei Narita Sky Access Line is a regional rail line on an east-west alignment. It runs from Imba-Nihon-idai in the west to Narita Airport Terminal 1 in the east, serving 4 stations. Trains through-operate onto the Hokusō and Keisei Main Lines.

The Hokusō Line opened in March 1979, and the last extension was to Imba-Nihon-idai in July 2000. The Narita Sky Access Line opened in July 2010.

Odakyū (小田急)

Dating back to 1927, Odakyū consists of a S-Train network with one metro branch that serves the cities of Tokyo and Odawara as well as cities in the Tama Region and northern Kanagawa Prefecture.

Odakyū Odawara Line (小田急小田原線)

The Odakyū Odawara Line is an S-Train line on a northeast-southwest alignment. It runs from Shinjuku in the northeast to Odawara in the southwest, with through service to the Odakyu Tama and Enoshima Lines, the Hakone Tozan Railway past Odawara, and the Chiyoda Line (limited through service) past Yoyogi-Uehara.

The Odawara Line opened in April 1927 and the last expansion was the opening of Kaisei in March 1985.

Odakyū Enoshima Line (小田急江ノ島線)

The Odakyū Enoshima Line is an S-Train line on a north-south alignment. It runs from Sagami-Ōno in the north to Katase-Enoshima in the south, serving 17 stations with a switchback at Fujisawa. Some trains through-operate onto the Odawara Line.

The Enoshima Line opened in April 1929.

Odakyū Tama Line (小田急多摩線)

The Odakyū Tama Line is a metro line on an east-west alignment. It runs from Shin-Yurigaoka in the east to Karakida in the west, serving 8 stations. Some trains through-operate onto the Odawara Line.

The Odakyū Tama Line opened in June 1974.

Seibu (西武)

Dating back to 1912 (with predecessor railway companies dating back to 1894), Seibu consists of two S-Train networks, one of which has a metro branch, and a detached urban mainline rail line, serving the city of Tokyo and the Tama Region. It also operates a people mover line.

Seibu Ikebukuro Line (西武池袋線) and branches

The Seibu Ikebukuro Line is an S-Train line on an east-west alignment. It runs from Agano in the west to Ikebukuro in the east, serving 31 stations. In the east, it has two branches. The Toshima Line is a S-Train line on a northwest-southeast alignment, running from Toshimaen in the northwest to Nerima in the southeast, serving 2 stations with through service onto the Seibu Ikebukuro Line. The Seibu Yūrakuchō Line is a metro line on a northeast-southwest alignment, running from Kotake-Mukaihara in the northeast to Nerima in the southwest with through service onto the Seibu Ikebukuro Line as well as the the Tokyo Metro Yūrakuchō and Fukutoshin Lines, serving 3 stations. Further west, the Sayama Line is an S-Train line on an east-west alignment. It runs from Nishi-Tokorozawa in the east to Seibukyūjō-mae in the west, serving 3 stations with through service onto the Seibu Ikebukuro Line. In addition, the Seibu Chichibu Line is a commuter rail line on an east-west alignment. It runs from Agano in the east to Seibu-Chichibu in the west, serving 6 stations with through service onto the Seibu Ikebukuro Line and Chichibu Railway.

The Seibu Ikebukuro Line was opened in April 1915, and the last expansion was the opening of Nerima-Takanodai in December 1994. The Seibu Toshima Line was opened in October 1927. The Seibu Yūrakuchō Line was opened in October 1983 as a branch of the Tokyo Metro Yūrakuchō Line and the last extension was to Nerima in December 1994. The Sayama Line opened in May 1929. The Chichibu Line opened in October 1969.

Seibu Shinjuku Line (西武新宿線) and Haijima Line (西武拝島線)

The Seibu Shinjuku Line is an S-Train line on an southeast-northwest alignment. It runs from Hon-Kawagoe in the northwest to Shinjuku in the southeast, serving 29 stations. The Haijima Line is a S-Train line on an east-west alignment, running from Kodaira in the east to Haijima in the west, serving 8 stations with through service onto the Seibu Shinjuku Line. Limited Tamako Line through service is not shown on the map.

The Seibu Shinjuku Line was opened in December 1894, and the last expansion was the opening of Kōkū-kōen in May 1987. The Haijima Line was opened in November 1928, and the last expansion was the opening of Musashi-Sunagawa in December 1983.

Seibu Kokubunji Line (西武国分寺線) and Seibuen Line (西武西武園線)

The Seibu Kokubunji Line is an S-Train line on a north-south alignment, part of the greater Shinjuku Line network. It runs from Kokubunji in the south to Higashi-Murayama in the north, serving 5 stations with through service onto the Seibuen Line. The Seibuen Line is a regional rail line on an east-west alignment, running from Higashi-Murayama in the east to Seibuen in the west, serving 2 stations with through service onto the Seibu Kokubunji Line. Due to construction, Shinjuku Line through services are currently suspended.

The Seibu Kokubunji Line was opened in December 1894 as part of the original line to Kawagoe, and the last expansion was the opening of Koigakubo in February 1955. The Seibuen Line was opened in April 1930.

Seibu Tamako Line (西武多摩湖線)

The Seibu Tamako Line is a regional rail line on a northwest-southeast alignment, part of the greater Shinjuku Line network. It runs from Tamako in the northwest to Kokubunji in the southeast, serving 7 stations.

The Seibu Tamako Line was opened in April 1928, and the last expansion was the opening of Yasaka in October 1942.

Seibu Tamagawa Line (西武多摩川線)

The Seibu Tamagawa Line is an urban mainline rail line on an east-west alignment. It runs from Musashi-Sakai in the east to Koremasa in the west, serving 6 stations.

The Seibu Tamagawa Line was opened in October 1917, and the last expansion was the opening of Tama in January 1929.

Seibu Yamaguchi Line/Leo Liner (西武山口線/レオライナー)

The Seibu Yamaguchi Line is a people mover line on a north-south alignment. It runs from Seibukyūjō-mae in the north to Tamako in the south, serving 3 stations.

The Seibu Yamaguchi Line was opened in August 1950 as a tourist train and was closed in May 1984 before being subsequently reopened as a people mover in April 1985, and the last expansion was the opening of Seibuen-yūenchi in April 1985 upon reopening.

Sagami Railway/Sōtetsu (相鉄)

Dating back to 1919, Sōtetsu consists of a S-Train network with one metro branch that serves the city of Yokohama.

Sōtetsu Main Line (相鉄本線) and branches

The Sōtetsu Main Line is an S-Train line on an east-west alignment. It runs from Ebina in the west to Yokohama in the east, serving 18 stations with through service onto the Sōtetsu Shin-Yokohama and Sōtetsu Izumino Lines. The Sōtetsu Shin-Yokohama Line is an S-Train line on a northeast-southwest alignment, running from Shin-yokohama in the northeast to Nishiya in the west, serving 3 stations with through service onto the Sōtetsu Main Line, JR-Sōtetsu Link Line, and Tōkyū Shin-Yokohama Lines.

The Sōtetsu Izumino Line is a metro line on an east-west alignment. It runs from Shōnandai in the west to Futamata-gawa in the east, serving 8 stations with through service onto the Sōtetsu Main Line.

The Sōtetsu Main Line was opened in May 1926, and the last expansion was the opening of Kashiwadai and Sagamino in August 1975. The Sōtetsu Izumino Line was opened in April 1976 and the last extension was to Shōnandai in March 1999. The Sōtetsu Shin-Yokohama Line was opened in November 2019 and the last extension was to Shin-yokohama in March 2023.

Tōbu (東武)

Dating back to 1899, Tōbu consists of two S-Train networks and an urban mainline rail line that serve the city of Tokyo as well as Saitama, Chiba, and Tochigi Prefectures.

Tōbu Skytree Line (東武スカイツリーライン) and branches

The Tōbu Skytree Line is a S-Train line on a north-south alignment, comprising the inner suburban portion of the Isesaki Line which is branded separately. It runs from Asakusa and Oshiage in the south to Tōbu-dōbutsu-kōen in the north, serving 30 stations with through service onto the Hanzōmon and Hibiya Lines to the south and the Nikkō and Isesaki Lines in the north. The Daishi Line is an urban mainline rail line on an east-west alignment, running from Nishiarai in the east to Daishimae in the west, serving 2 stations as a shuttle.

The Tōbu Kameido Line is an urban mainline rail line on a north-south alignment. It runs from Hikifune in the north to Kameido in the south, serving 5 stations.

The Tōbu Skytree Line branding began in March 2012. The Daishi Line was opened in December 1931. The Tōbu Kameido Line was opened in April 1904 and the last expansion was the opening of the intermediate stations in April 1928.

Tōbu Isesaki Line (東武伊勢崎線) and branches

The Tōbu Isesaki Line is a S-Train line on a north-south alignment. The inner portion is branded as the Tōbu Skytree Line and is tracked separately on this website. It runs from Tōbu-dōbutsu-kōen in the south to Isesaki in the north, serving 26 stations with through service onto the Skytree Line in the south and the Kiryū Line in the north. Most services only go as far as Tatebayashi or Ōta. The Kiryū Line is a commuter rail line on a northwest-southeast alignment. It runs from Akagi in the northwest to Ōta in the southeast, with through services onto both the Isesaki Line and the Ōta branch of the Koizumi Line. The Koizumi Line is a commuter rail line on an east-west alignment. It runs from Tatebayashi in the east to Nishi-koizumi and Ōta in the west, serving 9 stations. The branch to Ōta is operationally tied to the Kiryū Line rather than the rest of the Koizumi Line. The Sano Line is a commuter rail line on a north-south alignment. It runs from Kuzū in the north to Tatebayashi in the south, serving 10 stations.

The Tōbu Isesaki Line was opened in August 1899 and the last expansion on the section north of Tōbu-dōbutsu-kōen was the opening of Tōbu-Izumi in September 1935. The Kiryū Line opened in May 1911 and the last expansion was the opening of Azami in May 1937. The Koizumi Line was opened in March 1917 and the last expansion was the opening of Ryūmai in May 1942. The Sano line was opened in June 1889 and the last extension was to Tatebayashi in August 1914.

Tōbu Nikkō Line (東武日光線) and branches

The Tōbu Nikkō Line is a S-Train line on a north-south alignment. It runs from Tōbu-dōbutsu-kōen in the south to Tōbu-nikkō in the north, serving 26 stations with through service onto the Skytree Line in the south, the Utsunomiya Line past Shin-Tochigi, and the Kinugawa Line past Shimo-imaichi. Most services have a forced transfer at Minami-kurihashi. The Kinugawa Line is a commuter rail line on a north-south alignment. It runs from Shin-fujiwara in the north to Shimo-imaichi in the south, with through services onto the Nikkō Line and the Yagan Railway. The Utsunomiya Line is a commuter rail line on a north-south alignment. It runs from Tōbu-utsunomiya in the north to Shin-tochigi in the south, serving 11 stations with through service onto the Nikkō Line.

The Tōbu Nikkō Line was opened in October 1929 and the last expansion was the opening of Itakura-Tōyōdaimae in March 1997. The Kinugawa Line opened in January 1917 and the last expansion was the opening of Kinugawa-kōen in May 1939. The Tōbu Utsunomiya line was opened in August 1931 and the last expansion was the opening of Omochanomachi in April 1965.

Tōbu Noda Line/Urban Park Line (東武野田線/東武アーバンパークライン)

The Tōbu Noda Line, officially nicknamed the Urban Park Line, is an urban mainline rail line on a northwest-southeast alignment. It runs from Ōmiya in the northwest to Funabashi in the southeast via a switchback at Kashiwa, serving 35 stations.

The Tōbu Noda Line was opened in May 1911 and the last expansion was the opening of Nagareyama-ōtakanomori in August 2005.

Tōbu Tōjō Line (東武東上線) & Tōbu Ogose Line (東武越生線)

The Tōbu Tōjō Line is a S-Train line on a northwest-southeast alignment. It runs from Yorii in the northwest to Ikebukuro in the southeast, serving 39 stations with through service past Wakoshi onto the Tokyo Metro Yūrakuchõ and Fukutoshin Lines. The Ogose Line is a S-Train line on an east-west alignment. It runs from Ogose in the west to Sakado in the east with through service onto the Tōjō Line, serving 8 stations.

The Tōbu Tōjō Line was opened in May 1914 and the last expansion was the opening of Minami-yorii in October 2020. The Ogose Line was opened in February 1932 and the last expansion was the opening of Bushū-nagase in October 1938.

Tōkyū (東急)

Dating back to 1910, Tōkyū currently consists of a metro line, seven urban mainline rail lines, and a light rail line that serve the city of Tokyo as well as Yokohama and Kanagawa Prefecture.

Tōkyū Tōyoko Line (東急東横線)

The Tōyoko Line is an urban mainline rail line on a northeast-southwest alignment. It runs from Shibuya in the northeast with through service onto the Fukutoshin Line to Yokohama in the southwest with through service onto the Minatomirai Line, serving 21 stations. There is also through service to the Shin-Yokohama Line via Hiyoshi.

The Tōyoko Line was opened in February 1926 and the last expansion was the opening of Musashi-kosugi in June 1945.

Tōkyū Meguro Line (東急目黒線)

The Meguro Line is an urban mainline rail line on a northeast-southwest alignment. It runs from Meguro in the northeast with through service onto the Namboku and Mita Lines to Hiyoshi in the southwest with through service onto the Tōkyū Shin-Yokohama Line, serving 13 stations.

The Meguro Line was opened in March 1923 as the northern part of the Mekama Line (split off in August 2000), and the last expansion was the opening of Musashi-kosugi in June 1945.

Tōkyū Den'entoshi Line (東急田園都市線)

The Den-en-toshi Line is a metro line on an east-west alignment. It runs from Shibuya in the east with through service onto the Hanzōmon Line to Chūō-rinkan in the west, serving 27 stations. It comprises three distinct portions - the former Shin-Tamagawa Line from Futako-tamagawa to Shibuya, portions of the original Ōimachi Line (with which it has limited through service), and new portions west of Mizonokuchi.

The Tōkyū Den-en-toshi Line's initial infrastructure dates back to October 1963, and the last extension was to Chūō-rinkan in April 1984.

Tōkyū Ōimachi Line (東急大井町線)

The Ōimachi Line is an urban mainline rail line on an east-west alignment. It runs from Ōimachi in the west to Mizonokuchi in the west with limited through service onto the Den-en-toshi Line, serving 16 stations. Only a limited number of trains serve Takatsu and Futako-shinchi (the platforms of which are primarily used by the Den-en-toshi Line).

The Ōimachi Line was opened in July 1927, and the last expansion was the opening of Oyamadai in April 1930.

Tōkyū Ikegami Line (東急池上線)

The Ikegami Line is an urban mainline rail line on a north-south alignment. It runs from Gotanda in the north to Kamata in the south, serving 15 stations.

The Ikegami Line was opened in October 1922, and the last extension was to Gotanda in June 1928.

Tōkyū Tamagawa Line (東急多摩川線)

The Tōkyū Tamagawa Line is an urban mainline rail line on a northwest-southeast alignment. It runs from Tamagawa in the northwest to Kamata in the southeast, serving 7 stations.

The Tōkyū Tamagawa Line was opened in March 1923 as the southern part of the Mekama Line (split off in August 2000), and the last expansion was the opening of Shimomaruko in May 1924.

Tōkyū Shin-Yokohama Line (東急新横浜線)

The Tōkyū Shin-Yokohama Line is an urban mainline rail line on a northeast-southwest alignment. It runs from Hiyoshi in the northeast with through service to the Tōyoko and Meguro Lines to Shin-yokohama in the southwest with through service to the Sōtetsu Shin-Yokohama Line, serving 3 stations.

The Tōkyū Shin-Yokohama Line was opened in March 2023.

Tōkyū Setagaya Line (東急世田谷線)

The Setagaya Line is a light rail line on a north-south alignment. It runs from Shimo-takaido in the north to Sangen-jaya in the south, serving 10 stations.

The Setagaya Line was opened in January 1925, and the last expansion was the extension to Sangen-jaya in March 1932.

Kodomonokuni Line (こどもの国線)

The Kodomonokuni Line is a regional rail line on a north-south alignment. It runs from Kodomonokuni in the north to Nagatsuta in the south, serving 3 stations.

The Kodomonokuni Line was opened in April 1967, and the last expansion was the opening of Onda in March 2000. Unlike the other lines operated by Tōkyū, the Kodomonokuni Line is owned by the Yokohama Minatomirai Railway Company.

References & Helpful Links

JR East at Wikipedia | 東日本旅客鉄道 at Wikipedia.jp

Keikyu at Wikipedia | 京浜急行電鉄 at Wikipedia.jp

Keio Corporation at Wikipedia | 京王電鉄 at Wikipedia.jp

Keisei Electric Railway at Wikipedia | 京成電鉄 at Wikipedia.jp

Odakyu Electric Railway at Wikipedia | 小田急電鉄 at Wikipedia.jp

Sagami Railway at Wikipedia | 相模鉄道 at Wikipedia.jp

Seibu Railway at Wikipedia | 西武鉄道 at Wikipedia.jp

Tobu Railway at Wikipedia | 東武鉄道 at Wikipedia.jp

Tokyu Corporation at Wikipedia | 東急 at Wikipedia.jp

Official Website for JR East: JR East

Official Website for Keikyu: Keikyu

Official Website for Keio: Keio

Official Website for Keisei: Keisei

Official Website for Odakyu: Odakyu

Official Website for Sotetsu: Sagami Railway

Official Website for Seibu: Seibu

Official Website for Tobu: Tobu

Official Website for Tokyu: Tokyu

Maps

Official System Map - Suica/Pasmo Network Map (Kanto) [Last Accessed August 18, 2026]

All Official Maps - JR East [Last Accessed August 18, 2026]

Official System Map - JR East [Last Accessed August 18, 2026]

Official System Map - Keio [Last Accessed August 18, 2026]

Official System Map - Keisei [Last Accessed August 18, 2026]

Official System Map - Odakyu [Last Accessed August 18, 2026]

Official System Map - Seibu [Last Accessed August 18, 2026]

All Official Maps - Tobu [Last Accessed August 18, 2026]

Official System Map - Tobu [Last Accessed August 18, 2026]

Official System Map - Tokyu [Last Accessed August 18, 2026]

Other Sources

Other Websites

External Citations

Asset Notes

All line colors taken from Wikipedia unless specified otherwise

JR East colors taken from official JR East app.