Aizuma

Known weekday departures: 136/day in the available timetable data · Known Sat & holiday departures: 136/day in the available timetable data

Earliest / latest departure in the available data (weekday): 5:36 / 24:25 (00:25 next day)

Busiest hour in the available data: 17:00–18:00 (9)

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).

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: Obu ⇄ Kariya

Aizuma Station opened on 13 March 1988 as a JR Central petition station on the Tokaido Main Line between Kariya and Ōbu, with construction costs covered entirely by the City of Kariya. TOICA cards were accepted from 25 November 2006, and a barrier-free elevator together with a multi-purpose toilet entered service on 6 February 2016. JR Central retired the station's manned ticket office on 30 November 2020, and the station became wholly unstaffed under the Centralised Passenger Service System the following day. A second north plaza, costing about ¥410 million, was added by the city in 1999 to balance the originally single-sided forecourt.

Aizuma is the youngest station between Kariya and Ōbu on the Tokaido Main Line, owing its existence entirely to a local petition financed by Kariya City rather than to JR planning.