Iyo-Iwaki

Weekday departures: 15/day in the available timetable data · Sat & holiday departures: 15/day in the available timetable data

Earliest / latest departure in the available data (weekday): 6:36 / 21:15

Busiest hour in the available data: 7:00–8:00 (3)

0:00 ─ 23:00

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

Timetable data as of 2 May 2026.

The timetable data is incomplete for some or all lines at this station, so the weekday and Sat & holiday figures are departures in the available timetable data, not totals.

Lines where the timetable data is incomplete:

• Yosan Line: one direction only
• Yosan Line: timetable covers only part of the line

• Yosan Line: Futaiwa ⇄ Kami-Uwa

Iyo-Iwaki Station opened on 20 June 1945 as one of three intermediate stations set up when the Yosan Main Line was extended westwards from Yawatahama to link with the Uwajima Line at Unomachi — the final stretch of the through-route from Takamatsu to Uwajima. The station was originally operated by Japanese Government Railways and then Japanese National Railways. Following the privatisation of JNR on 1 April 1987, control passed to JR Shikoku. The unstaffed station has two opposed side platforms serving a through-track and a passing loop, with a small station building linked to platform 1 functioning as a waiting room.

Every year on 29 April the "Uwa Renge Festival" is held around this station, so the limited express "Uwakai" makes a special stop there only on that day.