383,000 (Wang and Mao 1995). Total users in all countries: 818,700.
Guangdong province: Ruyuan county; Guangxi Zhuang Autonomous Region, Dayao mountains; Guizhou province: Congjiang, Libo, and Rongjiang counties; Hunan, Jiangxi, and Yunnan provinces.
5 (Developing). Language of recognized nationality: Yao.
Guoshan Yao. Dialects may not be intelligible. Biao Mon [bmt] may be a dialect of Iu Mien. Differences from other Mienic languages are in the tone system, consonants, vowel quality, vowel length. Chinese linguists consider the Iu Mien spoken in Changdong, Jinxiu Yao Autonomous County, Guangxi to be the standard. May be most similar to Mandarin Chinese [cmn]. Lexical similarity: 78% with Kim Mun [mji], 70% with Biao-Jiao Mien [bje], 61% with Dzao Min [bpn].
Tonal, 7 tones.
Ethnic groups: Hua Lan, Hua, Hung, Cao Long, Coc, Khoc, Quan Coc, Quan Trang, Son Trang, Sung, Tien (Tiao Tchaine), Yaya. The Lakkia, Mun, Bunu languages, plus speakers of other Mienic and Hmongic languages, and ethnic Yao who speak Chinese, are officially classified within Yao nationality in China. Pingdi Yao (Piongtuojo, Piongtoajeu) is a variety of Chinese with 1,000,000 speakers, half of whom are members of Yao nationality, Guangdong Province, Hunan-Guangxi border. Daoist, traditional religion.