Xiamen is located in the southeast coast of China. It is made up of Xiamen Island, Gulangyu and some coastal areas on the north bank of inland Jiulong River. Altogether, these cover an area of 1,699.34 square kilometers, among them, Xiamen Island, the fourth largest island of Fujian covering an area of 141.09 square kilometers. It has a permanent population of 4,110,000 as of the end of 2018. It is divided into 6 districts- Siming, Huli, Jimei, Haicang, Tong'an, Xiang'an.