Shimōsa Plateau
Shisui is located on the Shimōsa Plateau in northeastern Chiba Prefecture, about 20 kilometers from the prefectural capital at Chiba and within 40 to 50 kilometers from the center of Tokyo. The town overlooks the Inba Marsh. The town sits on relatively flat, even ground. The south of Shisui is crossed by three small rivers: the Takazaki, Egawa, and Nakagawa, all of which empty into the Inba Marsh.