Oceanside is a coastal resort city located on California's South Coast. It is the third-largest city in San Diego County, California. The city had a population of 183,095 at the 2010 census. Together with Carlsbad and Vista, it forms a tri-city area. Oceanside is located just south of Marine Corps Base Camp Pendleton, the busiest military base in the United States.[2] The city has experienced dramatic growth since 1970, when its population was 45,000. Much of the city's area was developed into single-family home tracts during the 1970s and 1980s. Since the 1990s, increased commercial and industrial development have diversified Oceanside's economic base.

Reference: http://en.wikipedia.org/wiki/Oceanside%2C_California