Chalcos is one of 11 districts of the Sucre Province in the Ayacucho region in Peru.

The population of Chalcos is 748 people, 376 men and 372 women.

[1] The people in the district are mainly indigenous citizens of Quechua descent.

Quechua is the language which the majority of the population (81.70%) learnt to speak in childhood, 18.16% of the residents started speaking using the Spanish language (2007 Peru Census).

[2] The populated places in the district are:[1] This Ayacucho Region geography article is a stub.