Salto de Agua is a town and municipality in the Mexican state of Chiapas in southern Mexico. As of 2010, the municipality had a total populatio…Salto de Agua is a town and municipality in the Mexican state of Chiapas in southern Mexico. As of 2010, the municipality had a total population of 57,253, up from 49,300 as of 2005. It covers an area of 1289.2 km².