History
Nanjai Station serves the city of Tomioka in Gunma Prefecture and is operated by Jōshin Dentetsu on its Jōshin Line, 28.2 kilometres from the Takasaki terminus. It opened on 7 July 1897 and has remained in continuous operation since. The station has an island platform with two tracks, a wooden station building and a westernised washroom. Staffing is partial: the station is unattended on Sundays, alternate Saturdays and off-peak weekday hours. The station is also known for the cluster of pulsatilla flowers, a rare wild plant, planted on its grounds.
History summarized from Japanese & English Wikipedia · last reviewed 2026-06-09.
Where the English and Japanese sources differ, this account follows the Japanese source.
Notes
Nanjai sits 112.05 kilometres from the nearest coastline at Odawara, making it the second-most inland passenger station in Japan after Kaise Station on the JR East Koumi Line — a difference of only 720 metres.