Cochabamba is a city and municipality in central Bolivia in a valley in the Andes mountain range. It is the capital of the Cochabamba Department and the fourth largest city in Bolivia, with a population of 661.484 according to the 2024 Bolivian census. Its name is from a compound of the Quechua words qucha "lake" and pampa, "open plain." Residents of the city and the surrounding areas are commonly referred to as cochalas or, more formally, cochabambinos.