Mikawa-Otsuka

Weekday departures: 88/day in the available timetable data · Sat & holiday departures: 88/day in the available timetable data

Earliest / latest departure in the available data (weekday): 6:00 / 24:30 (00:30 next day)

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

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:

• Tokaido Main Line: only trains from timetables filed under other lines

• Tokaido Main Line: Mikawa-Miya ⇄ Aichi-Mito

Mikawa-Ōtsuka Station opened on 8 July 1953 as a seasonal stop on the JNR Tōkaidō Main Line, serving beachgoers heading for the nearby coast in Gamagōri, Aichi Prefecture. The first station building followed in June 1954, and the stop was upgraded to permanent year-round service on 1 March 1960. Lengthened platforms and a new building were completed on 25 November 1965. With the breakup of JNR on 1 April 1987, the station came under JR Tōkai. The current third-generation building opened on 20 July 2005. TOICA service began on 25 November 2006, and the station was assigned number CA45 when JR Central introduced numbering on the Tōkaidō Main Line in March 2018.

Although Mikawa-Ōtsuka was opened in 1953 as a summer-only seasonal station for swimmers, sustained local petitioning successfully upgraded it to permanent year-round operation just under seven years later, on 1 March 1960.