L1 users: 85,000 (2000 census).
Yunnan province: Chuxiong Yi autonomous prefecture, Dayao, Wuding, and Yongren counties, Kunming prefecture, Miao and Luquan Yi autonomous counties (Yongwu dialect); Miao and Wenshan Zhuang autonomous prefectures, Maguan county (Maguan dialect); Honghe Hani and Yi autonomous prefectures, Honghe and Yuanyang counties, and Yuxi prefecture, Dai, Yi, and Yuanjiang Hani autonomous counties (Yuanjiang dialect); Honghe Hani and Yi autonomous prefectures, Jianshui Lüchun, and Shiping counties (Lüshi dialect).
7 (Shifting). Language of recognized nationality: Dai.
Yongwu, Maguan, Yuanjiang (Shui Dai), Lüshi. Dialects are significantly different and probably not all mutually intelligible. Tai Hongjin is a subgroup of scattered non-Buddhist Southwestern Tai language groups, who have some common phonological traits, but many differences as well. Tai Hongjin dialects have undergone more influence from Chinese and surrounding Ngwi languages (Yi and Hani) than other Yunnan Tai languages, and are only 50%–60% lexically similar to other Tai languages.