Loreto is a town and municipality in the state of Zacatecas, Mexico. The town is the seventh-largest community in the state, with a 2005 census population of 22,085 inhabitants, while the municipality of which it serves as municipal seat had a population of 43,411. The municipality has an area of 427 km². People celebrate Nuestra Señora de Loreto from 1 to 10 December. It is an agricultural region where people grow primarily lettuce, corn, chili and beans.