Kosei

Known weekday departures: 75/day · Known Sat & holiday departures: 75/day

First / last known departure (weekday): 5:36 / 23:48

Busiest hour (known departures): 7:00–8:00 (6)

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 2 May 2026 (retrieved in spring/summer 2026).

• Kusatsu Line: Ishibe ⇄ Mikumo

Kōsei Station opened on 1 October 1981 as a new station on the JNR Kusatsu Line between Mikumo and Ishibe, built to handle traffic for the Biwako Kokutai sports meet of the same year. It is the youngest station on the line. With privatisation on 1 April 1987 it passed to JR West, automatic ticket gates were installed in January 1999, ICOCA support arrived on 1 November 2003, and an elevator entered service on 18 March 2015. The station is a single-platform halt with an elevated concourse and simplified automatic ticket gates, standing in the central urban district of Konan City; municipalities along the line have called for a passing loop to be added here.

A D51 steam locomotive formerly displayed in the rotary on the north side of the station was handed over to machine-tool maker Yamazaki Mazak in August 2008, freeing the rotary for the station-area redevelopment, and has been displayed since 2019 at the Yamazaki Mazak Museum of Machine Tools.