History
Koyanagi Station opened on 1 November 1986 as an unstaffed station on the Japanese National Railways' Tōhoku Main Line, inaugurated the same day as Shin-Aomori on the Ōu Main Line and Yatamae on the Tōhoku Main Line. With the JNR split on 1 April 1987 it came under JR East. On 4 December 2010 the Tōhoku Shinkansen extension to Shin-Aomori transferred the surrounding section to the Aoimori Railway Company. The station has two opposed side platforms linked by a pedestrian underpass on the east side rather than a footbridge, and is managed by Aomori Station; staff from Asamushi-Onsen Station deploy here during weekday morning rush hours.
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
Daily boardings nearly doubled in fiscal 2017 after Aomori Commercial High School relocated to the station's vicinity, lifting the average from 295 to 1,063 passengers.