Shimomaruko StationShimomaruko Station is a Tokyu Tamagawa Line station located in Ōta, Tokyo.WWW tokyu.co.jp/railway/stati...Station layoutThe station is composed of two ground-level side platforms.HistoryMay 2, 1924: The station opens.October 1998: The station becomes unstaffed.In 2021, the average number of daily passengers at Shimomaruko Station was 28,099, the second-most of all the stations on the Tokyo Tamagawa line.