258,000 (McConnell 1995). 97,000 monolinguals. Ethnic population: 439,000 (1982 census). 100,000 ethnic Bunu speak Central Hongshuihe Zhuang [zch] as L1.
Western Guangxi Zhuang Autonomous Region, 22 counties: Du’an, Bama, Dahua, Lingyun, Nandan, Tiandong, Tianyang, Pingguo, Fengshan, Donglan, Hechi, Mashan, Bose, Tianlin, Leye, Tiandeng, Xincheng, Shanglin, Long’an, Debao, Laibin, and Luocheng; Guizhou Province, Libo county; Yunnan Province, Funing county.
Bunuo (Pu No), Cingsui Longlin, Dongnu (Bunu, Punu, Tung Nu), Hontou Longlin, Naogelao (Baonuo, Nao Khalo, Nao Klao, Nau Klau, Pounou), Numao (Hong Yao, Nu Mhou), Nunu. The dialects listed may be at least 5 languages (D. Strecker 1987), communication is difficult (McConnell 1995).
SVO; modifiers follow heads; up to 11 affixes; complex set of initials including prenasalized stops; relatively simple rhymes; tonal, most dialects have 8 tones
Officially classified within Yao nationality. Daoist, traditional religion.