Kohoku (Saga)

Weekday departures: 136/day · Sat & holiday departures: 136/day

First / last departure (weekday): 5:14 / 23:06

Busiest hour: 16:00–17:00 (11)

0:00 ─ 23:00

Figures are typical departures in the timetable data, not a live service count.

Timetable data as of 2 May 2026.

• Sasebo Line: Oomachi
• Nagasaki Main Line: Ushizu ⇄ Hizen-Shiroishi

The Kyushu Railway opened its line from Tosu to Saga on 20 August 1891, and when that line was extended westwards to Takeo (today Takeo-Onsen) on 5 May 1895, the station opened on the same day as an intermediate stop under the name Yamaguchi. Following the 1 July 1907 nationalisation of the Kyushu Railway, the route was designated the Nagasaki Main Line on 12 October 1909, and the station was renamed Hizen-Yamaguchi on 1 March 1913. On 1 December 1934 the segment running through Takeo to Sasebo was redesignated the Sasebo Line, which from then on started here. With the privatisation of Japanese National Railways on 1 April 1987 the station passed to JR Kyushu. On 23 September 2022 it was renamed Kōhoku, taking the name of the town it serves.

The station carried the Hizen-Yamaguchi name for over a century before being renamed Kōhoku on 23 September 2022, aligning its identity with the surrounding town.