The following is the entry for this language as it appeared in the 14th edition (2000).
It was superseded by the corresponding entry in the 15th edition (2005). See also the corresponding entry in the current edition of Ethnologue.
| Population | 1,500,000 (1989 UBS). |
| Region | Central Cuzco, Arequipa regions. |
| Alternate names | CUSCO QUECHUA |
| Dialects | CAYLLOMA QUECHUA. |
| Classification | Quechuan, Quechua II, C. |
| Comments | Some dialect differences, but not as distinct as elsewhere. Substantial phonological and morphological differences with Ayacucho Quechua. National language. Dictionary. Grammar. SOV. Literacy rate in first language: 1% to 5%. Literacy rate in second language: 25% to 50%. Bible 1988. |