The Inca lived in the Andes Mountains in South America. Their range stretched from southern Chile through Argentina, Bolivia, Peru and Ecuador and into southern Colombia.The Inca were very warlike and often attacked their neighbors to take their land.In this way, the Inca Empire, which started out small, grew to be very large.he Inca lived in stone houses varying in sizes. They were all built in the Andes on flat plateaus. Their temples, however, were built on circular mounds made by the Inca, sort of like a slanted cylinder. At the top there was a plateau.