 On the north side of the station are narrow gauge () storage tracks used for transferring rolling stock from J-TREC's Yokohama factory to JR East's tracks at Zushi Station.Jimmuji Station opened on April 1, 1931, as a temporary stop on the Shōnan Electric Railway, the predecessor to the current Keikyu.It was initially located 300 meters towards Kanagawa Hakkei than the present station.