Quillota is a city located in the Aconcagua River valley of central Chile's Valparaíso Region. It is the capital and largest city of the Quillota Province where many inhabitants live in the surrounding farm areas of San Isidro, La Palma, Pocochay, and San Pedro. It is an important agricultural center, mainly because the plantations of avocado and cherimoya (custard apple) trees.