L1 users: 463,000 (2003).
Guangxi Zhuang Autonomous Region: 20 contiguous counties; Guizhou province: Yuping autonomous county; conjunction of west Hunan province and north Guangxi Zhuang Autonomous Region.
6b (Threatened). Language of recognized nationality: Dong.
None known. Zhanglu speech in Rongjiang County, Guizhou Province is standard variety. Reportedly similar to Mulam [mlm]. Lexical similarity: 80% with Northern Dong varieties, 71% with Southern Dong [kmc], 46% with Lakkia [lbc], 29% with Qabiao [laq], 26% with Hlai [lic], 24% with Gelao, 22% with Lachi [lbt], 6% with Hmong Njua [hnj], 4% with Iu Mien [ium].
Tonal, 9 tones.
Latin script [Latn], pinyin-based, used since 1981, experimental, small-scale use in education and literature.
Traditional way of life relatively undisturbed. Traditional religion.