Aso (Kochi)

Weekday departures: 36/day · Sat & holiday departures: 36/day

First / last departure (weekday): 5:45 / 23:05

Busiest hour: 17:00–18:00 (4)

0:00 ─ 23:00

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

Timetable data as of 2 May 2026.

• Dosan Line: Togano ⇄ Onogo

Asō Station opened on 30 March 1924 as the Kōchi Line — later renamed the Dosan Line — was built through the area. The station was operated by Japanese Government Railways and then Japanese National Railways. Parcel delivery ended in 1969 and the following year the station was destaffed, becoming a kan'i itaku agency station with limited ticketing handled by a nearby shop. With the privatisation of JNR on 1 April 1987 the station passed to JR Shikoku. The wooden station building survives and continues to serve as a waiting room, while two opposed side platforms host the line's local services.

Because the platform turnout uses a spring point (a No. 12 equilateral turnout), even trains passing through are subject to a 45 km/h speed restriction.