Nishi-Kozakai

Weekday departures: 85/day in the available timetable data · Sat & holiday departures: 85/day in the available timetable data

Earliest / latest departure in the available data (weekday): 5:53 / 24:37 (00:37 next day)

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

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: Aichi-Mito ⇄ Toyohashi

Nishi-Kozakai Station began operations on 10 June 1945 as Nishi-Ina Signal Station on the Tōkaidō Main Line, in what is now Toyokawa, Aichi Prefecture, built to serve a wartime munitions plant siding. It was elevated to a full station and renamed Nishi-Kozakai on 1 August 1948, with the former siding becoming a freight branch for the Fuji Spinning Kozakai mill. Regular freight ended on 1 March 1972 and parcels by February 1984. With JNR privatisation on 1 April 1987 it passed to JR Central. TOICA turnstiles entered service on 25 November 2006. The ticket office closed on 30 September 2017 and the station became unstaffed the following day; station number CA43 followed in March 2018.

On the Tōkaidō Main Line east of this station, there is no unstaffed station all the way to Yui Station in Shizuoka Prefecture, giving it an unusual position.