Isla Vista is an unincorporated community in Santa Barbara County, California, United States. As of 2020 census, the community had a population of 15,500. For statistical purposes, the United States Census Bureau has defined the community as a census-designated place (CDP). The majority of residents are college students at the University of California, Santa Barbara, or Santa Barbara City College. The beachside community of Isla Vista lies on a flat plateau about 30 feet (9 m) in elevation, separated from the beach by a bluff.