Wuzhou is a prefecture-level city in China's Guangxi Zhuang Autonomous Region. Wuzhou is located in eastern Guangxi bordering Guangdong province. It is at the confluence of the Gui River and the Xun River where they form the Xi River; 85% of all water in Guangxi flows through Wuzhou. The total area of Wuzhou is 12,588 km². According to the 2010 Census, the prefecture-level city of Wuzhou has 3,273,300 inhabitants and a population density of 260 inhabitants per km².