Nuevo is a rural community located east of Lake Perris and the city of Perris in Riverside County, California. The usually dry San Jacinto River runs along the northern portion of the area. The population of the census-designated place was 6,447 at the 2010 census, up from 4,135 at the 2000 census. Nuevo is in an unincorporated area and falls under the jurisdiction of Riverside County. Being unincorporated, Nuevo has no formal local government such as a mayor, city council, or treasurer.