83,000 (1999 Sun Hong Kai). 25,000 monolinguals. Ethnic population: 151,000 including 139,000 in Situ Jiarong, 12,200 in Chabao and Sidaba (Lin Xiangrong 1993).
North central Sichuan Province. Situ is in the traditional territory of 4 chieftaincies: Zhuokeji, Suomo, Songgang, Dangba. Chabao is in northeast corner of Maerkang county, Chabao district, Longerjia, Dazang, and Shaerzong townships. Sidaba is in Maerkang county, Sidaba district, Caodeng, Kangshan, and Ribu townships; north in southwest corner of Aba county, Kehe and Rongan townships; west along middle Duke river, Rangtang county, between Wuyi and Shili townships; and Seda county at the confluence of Seda and Duke rivers, a small town.
Chabao (Central Jiarong, Dazang, Northeastern Jiarong, Northern Jiarong), Sidaba (Caodeng, Northwestern Jiarong, Western Jiarong), Situ (Eastern Jiarong). Varieties of Situ are: Ma’erkang, Lixian, Jinchuan (Dajin), and Xiaojin. Varieties of Sidaba are Caodeng and Ribu. Western and Northern phonology are fairly similar but differ greatly from Eastern. Dialects are likely three separate mutually unintelligible languages. Lexical similarity: 75% between Eastern and Northern Jiarong (with significant phonological differences), 60% between Western and Northern, 13% between the Situ dialect and Horpa [ero].
SOV; phonologically and lexically similar to Tibetan, grammatically more similar to Pumi and Qiang; complex consonant clusters; limited pitch contrast
Officially classified within Tibetan nationality. Traditional religion, Buddhist (Lamaist).