Sihong County is under the administration of Suqian, Jiangsu province, China. It borders the prefecture-level cities of Huai'an to the southeast, Chuzhou (Anhui) to the south, Bengbu (Anhui) to the west, and Suzhou (Anhui) to the northwest.

Suqian is a prefecture-level city in northern Jiangsu Province, China. It borders Xuzhou to the northwest, Lianyungang to the northeast, Huai'an to the south, and the province of Anhui to the west.