* Peru: This is where the largest number of Quechua speakers reside.
* Bolivia: The second largest concentration of Quechua speakers.
* Ecuador: A significant portion of the population speaks Quechua.
* Colombia: Quechua is spoken mainly in the southern departments.
* Argentina: Quechua is spoken in the northwest of the country, particularly in the provinces of Jujuy and Salta.
* Chile: Quechua is spoken in the northern regions of Chile.
While these are the main countries where Quechua is spoken, it is also present in smaller communities in other parts of South America, such as Brazil and Paraguay.