History
Koyoshi Station opened on 1 August 1922 as the Tamanoike signal stop on the privately operated Yokojō Railway, in what is now Yurihonjō, Akita Prefecture. It was elevated to a full station and renamed Koyoshi on 24 October 1926. The Yokojō Railway was nationalised on 1 September 1937 and the route became the Japanese Government Railways' Yashima Line. The line was privatised on 1 October 1985 and became the Yuri Kōgen Railway's Chōkai Sanroku Line, the operator under which the station runs today. Freight handling ceased in 1961, parcel service in 1971 along with on-site staffing, and a new station building opened on 20 December 2011.
History summarized from Japanese & English Wikipedia · last reviewed 2026-05-18.
Notes
The 2011 replacement building was designed to continue housing the Tamanoike Simple Post Office, making Koyoshi one of the rare stations whose station building also contains a post office.