Koguwa

Known weekday departures: 16/day · Known Sat & holiday departures: 16/day

First / last known departure (weekday): 6:10 / 21:39

Busiest hour (known departures): 7:00–8:00 (2)

0:00 ─ 23:00

Figures are the departures known from the timetable data, not a count of today's actual service.

Timetable data as of 5 May 2026 (retrieved in spring/summer 2026).

• Yamagata Railway Flower Nagai Line: Ayukai ⇄ Shirousagi

Koguwa Station, on the Yamagata Railway Flower Nagai Line in Shirataka, Yamagata Prefecture, opened on 11 December 1922. The station was absorbed into the JR East network upon the 1987 privatization of Japanese National Railways, then transferred to the third-sector Yamagata Railway on 25 October 1988 when the Flower Nagai Line passed out of JR control. A new station building was completed in April 2004. The station has a single side platform serving traffic in both directions and sits 24.6 rail kilometres from the line's southern terminus at Akayu Station, near the Mogami River in the surrounding rural countryside.