Socorro County is a county located in the U.S. state of New Mexico. As of the 2010 census, the population was 17,866. The county seat is Socorro. The county was formed in 1852 as one of the original nine counties of New Mexico Territory. Socorro was originally the name given to a Native American village (see: Puebloan peoples) by Don Juan de Oñate in 1598. Having received vitally needed food and assistance from the native population, Oñate named the pueblo Socorro ("succor" in English).