Guannan is the south gate of Lianyungang, which is close to the Yellow Sea and the junction of the four cities. It is connected with Xiangshui in Yancheng in the east, Lianshui in Huai 'an in the south and Shuyang in Suqian in the west. The total area of the county is 104 1 km2, of which the water area is 263 km2 and the cultivated land is 890,000 mu. Jurisdiction over 18 townships and 245 villages.