Ota (Gunma)

Weekday departures: 31/day in the available timetable data

Earliest / latest departure in the available data (weekday): 10:11 / 22:37

Busiest hour in the available data: 15:00–16:00 (3)

0:00 ─ 23:00

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

Timetable data as of 14 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:

• Tobu Isesaki Line: timetable covers only part of the line
• Tobu Kiryu Line: only trains from timetables filed under other lines
• Tobu Koizumi Line: no timetable data

• Tobu Isesaki Line: Ashikagashi ⇄ Shin-Isesaki
• Tobu Kiryu Line: Yabuzuka
• Tobu Koizumi Line: Tatebayashi

Ōta Station is the principal Tobu Railway junction in Ōta, Gunma, served by the Isesaki, Kiryū and Koizumi lines and numbered TI-18. It opened on 17 February 1909 when the Isesaki Line was extended from Ashikaga-machi. The Tobu Kiryū Line was added on 19 March 1913 after Tobu acquired the Ōta Light Railway, and the Koizumi Line opened on 1 June 1941 to serve the Nakajima Aircraft Company's Koizumi works. An air raid on 4 April 1945 destroyed the station and damaged about 1,067 tsubo of structures and 350 m of track; rebuilding was completed in 1954. A 28.9-billion-yen grade-separation project, begun in 1997, finished in 2007 with three elevated island platforms serving six tracks.

The station's February 1909 opening day was marked by a sumo tournament held on the station forecourt featuring three yokozuna, drawing large crowds to celebrate the line's extension into Ōta.