1,500,000 (1989 UBS). 300,000–500,000 monolinguals. Total Quechua in Peru 3,500,000–4,400,000 including Quechua I 750,000, Quechua II 2,680,000 (2000 W. Adelaar). Ethnic population: 1,500,000.
Cusco, half of Puno, and northeast Arequipa regions.
3 (Wider communication). Language of recognized nationality (1993, Constitution, Article 48).
Caylloma Quechua, Eastern Apurímac Quechua, Puno Quechua. Some dialect differences, but not as distinct as elsewhere. Substantial phonological and morphological differences with Ayacucho Quechua.
Christian, traditional religion.