Kami-Igusa Station
Lines. Kami-Igusa Station is served by the 47.5 km Seibu Shinjuku Line from in Tokyo to in Saitama Prefecture. History. Kami-Igusa Station opened on 16 April 1927. Station numbering was introduced on all Seibu Railway lines during fiscal 2012, with Kami-Igusa Station becoming "SS12". Passenger statistics. In fiscal 2013, the station was the 51st busiest on the Seibu network with an average of 20,030 passengers daily. The passenger figures for previous years are as shown below.