San Nicolás de los Garza, sometimes known only as San Nicolás, is a city and coextensive municipality in the Mexican state of Nuevo León that is part of the Monterrey Metropolitan area. It has become primarily a city for residencies and family houses, although it still has several factories that tend to relocate to the periphery of the metropolitan area. It is the third-largest city in the state, behind Monterrey and Guadalupe.