History
Kokokei Station traces its origins to the Ikeda Signal Stop, opened on 10 October 1940 on the Chūō Main Line between Tajimi and Jōkōji by Japan's state railway. Passenger services began as a provisional halt on 1 March 1951, and the site was reclassified as Kokokei Station on 1 April 1952. The station became unstaffed in 1970, then a contracted-management station the following year. In 1966 the older route was replaced by the doubled, electrified line through the Aigi Tunnel; the present station occupies the site of a tunnel destroyed in that rebuild. It passed to Central Japan Railway Company (JR Central) at the 1 April 1987 privatization.
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
JR Central's station signs, tickets, and fare boards write the station name with the traditional character 古虎溪 rather than the simplified 古虎渓 used in most other sources.