Kisarazu Station is served by the Uchibō Line and Kururi Line. It is 31.3 kilometers from the starting point of the Uchibō Line at Soga Station and forms the eastern terminus of the 32.3 kilometer Kururi Line.
Station layout
The station consists of two island platforms serving four tracks, connected to the station building by a footbridge. The station has a "Midori no Madoguchi" staffed ticket office.