* Argentina: In the northwest, particularly in the provinces of Jujuy, Salta, and Catamarca.
* Chile: In the north, especially in the regions of Arica y Parinacota and Tarapacá.
* Colombia: In the southern part of the country, near the border with Ecuador.
It's important to note that Quechua is actually a family of languages with many dialects, and Aymara is also a language family with several dialects. While these languages are primarily concentrated in the Andean region, their distribution can vary depending on the specific dialect in question.