The is a railway line in
Tokyo
Tokyo, officially the Tokyo Metropolis, is the capital of Japan, capital and List of cities in Japan, most populous city in Japan. With a population of over 14 million in the city proper in 2023, it is List of largest cities, one of the most ...
, Japan, operated by the private railway operator
Seibu Railway
is a conglomerate based in Tokorozawa, Saitama, Japan, with principal business areas in railways, tourism, and real estate. Seibu Railway's operations are concentrated in northwest Tokyo and Saitama Prefecture; the name "Seibu" is an abbrevi ...
.
The line is part of the Seibu Shinjuku group of railway lines and connects suburban areas of western Tokyo to
Seibu and JR main lines that run to central Tokyo. The line passes through the cities of
Higashimurayama
is a city located in the western portion of the Tokyo Metropolis, Japan. , the city had an estimated population of 148,275, and a population density of 8700 persons per km2. The total area of the city is .
Geography
Higashimurayama is located o ...
,
Kodaira, and
Kokubunji.
History
The line was opened in 1894 as part of the Kawagoe Railway linking and . At this time, was the only intermediate station on the to Kokubunji section. In 1927, the Kawagoe railway was diverted at Higashi-Murayama to a new section of track to and so the Kokubunji line was formed from the orphaned section. The line was electrified in 1948. Two additional intermediate stations were later opened between Ogawa and Kokubunji: opened in 1948, and opened in 1955. Setting up of Hanesawa and track doubling from Koigakubo to Hanesawa was carried out in 1968. Since July 2008, recorded announcements on trains have been provided in English in addition to Japanese.
Through service onto the
Seibu Shinjuku Line
The is a Japanese railway line owned by the private railway operator Seibu Railway, connecting Seibu Shinjuku Station in Shinjuku, Tokyo with Hon-Kawagoe Station in Kawagoe, Saitama.
The Shinjuku Line is one of two main lines of the Seibu Ra ...
has been suspended since 19 March 2019 because of the reconstruction of Higashi-Murayama Station into an elevated station.
On 31 May 2025,
Seibu 8000 series trains entered service on the Kokubunji Line to replace the Seibu 2000 series. They are converted from
Odakyu 8000 series trains.
Stations
Operations
2000 series EMUs are used on this line. These trains are painted in Seibu Railway's distinctive yellow livery. All trains are local services and stop at all stations. Trains take 12 minutes to complete the journey.
The line is mostly single track between and , but with double track sections at each station. Track between and is double track for the first and single track the last before Kokubunji station. The track changes from double to single at .
The double-track section allows 8 trains per hour to operate in each direction during peak. At Kokubunji Station, trains use only a single platform (platform 5) at the terminus.
References
External links
Seibu Railway route map - Kokubunji Linesee middle Shinjuku Line section - Kokubunji Line
{{Tokyo transit
Kokubunji Line
Railway lines in Tokyo
Western Tokyo
1067 mm gauge railways in Japan
Railway lines opened in 1894