The Nanyue lived in north, east, and central Guangdong, as well as a small group in east Guangxi.
The Western Valley (Xi'ou) lived in most of Guangxi and western Guangdong, with most of the population concentrated along the Xun River region and areas south of the Gui River, both part of the Xi River watershed. Descendants of Yi-Xu-Song, the chieftain killed resisting the Qin armies, acted as self-imposed governors of the Xi'ou clans. At the time of Nanyue's defeat by the Han Dynasty, there were several hundred thousand Xi'ou people in Guilin Commandery alone.
The Luoyue clans lived in what is now western and southern Guangxi, northern Vietnam, the Leizhou Peninsula, Hainan, and southwest Guizhou. Populations were centered in the Zuo and You watersheds in Guangxi, the Red River Delta in northern Vietnam, and the Pan River watershed in Guizhou. The Chinese name "Luo", which denoted a white horse with a black mane, is said to have been applied to them after the Chinese saw their slash-and-burn method of hillside cultivation.
Read more about Nanyue: Language, Kings, Archaeological Findings, Vietnam, Nanyue Culture