Iidabashi

Weekday departures: 1,233/day in the available timetable data · Sat & holiday departures: 765/day in the available timetable data

Earliest / latest departure in the available data (weekday): 4:42 / 24:41 (00:41 next day)

Busiest hour in the available data: 8:00–9:00 (89)

0:00 ─ 23:00

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

Timetable data as of 28 April 2026 to 4 May 2026: the timetables behind these figures were retrieved on different dates.

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 complete: Oedo Line

Lines where the timetable data is incomplete:

• Tokyo Metro Tozai Line: timetable data withheld pending licensing
• Namboku Line: timetable data withheld pending licensing
• Yurakucho-Ikebukuro Line: timetable data withheld pending licensing
• Chuo Main Line: timetable covers only part of the line

• Oedo Line: Kasuga (Tokyo) ⇄ Ushigome-kagurazaka
• Chuo Main Line: Suidobashi ⇄ Ichigaya

Iidabashi Station opened on 15 November 1928 to consolidate the closely-spaced Ushigome (opened 1894) and Iidamachi (opened 1895) stops on the Chūō Main Line. TRTA opened the Tōzai Line platforms on 23 December 1964, the Yūrakuchō Line on 30 October 1974, and the Namboku Line on 26 March 1996; the Toei Ōedo Line followed on 12 December 2000, designed by architect Makoto Sei Watanabe. JNR’s platforms passed to JR East on 1 April 1987 and Suica IC service began on 18 November 2001. On 12 July 2020 the JR platforms were rebuilt and moved roughly 200 metres west to eliminate a sharp curve that had caused a steady stream of platform-gap accidents.

The original JR platform sat on a 300-metre-radius curve, leaving gaps of up to 33 centimetres between train and platform and a height mismatch of 20 centimetres — conditions that produced roughly ten falling-onto-tracks incidents per year until the 2020 westward rebuild straightened the alignment.