Channel Islands Beach is an unincorporated community in Ventura County, California, United States consisting of three historic neighborhoods: Hollywood Beach, Hollywood by the Sea, and Silver Strand Beach. This densely populated narrow 1.3-mile-long strip (2.1 km) along the coastal edge of the Oxnard Plain was subdivided using the fascination of Hollywood to sell lots in the mid 1920s past the sand dunes had been used for movies. Adjacent build up has left this sandy beachfront neighborhood hemmed in by Channel Islands Harbor and Naval Base Ventura County. The harbor mouth separates them into two communities resulting in a round-about travel route on the subject of the harbor between them although the Channel Islands Beach Community Services District provides local utilities services to every one of neighborhood. The Special-purpose district has an elected Board of Directors which provides a forum for the unique concerns of the community. Lying shortly adjacent but external the corporate boundaries of the City of Oxnard and the City of Port Hueneme, they are governed by the county Board of Supervisors.

The population of this residential community was 3,103 at the 2010 census, down from 3,142 at the 2000 census. For statistical purposes, the United States Census Bureau has defined Channel Islands Beach as a census-designated place (CDP).

The census definition of the area may not get along with to local contract of the area. This unincorporated coastal community overlooks the Santa Barbara Channel. Oxnard Beach Park is brusquely upcoast of Hollywood Beach and separates the community from the Oxnard neighborhood of Oxnard Shores. Three subdivision maps created the town lots (from north to south and the year recorded): Hollywood Beach (1924), Hollywood by the Sea (1926), and Silver Strand (1925). The mouth of the port was constructed over the shoreline share of the Hollywood-by-the-Sea subdivision. A few of the lots remained upon the north side of the harbor mouth bearing in mind the intact Hollywood Beach subdivision. Although still unincorporated, this neighborhood is neighboring the harbor and additional housing, both of which are in the City of Oxnard. The allowance of the community on the south side of the mouth is more isolated like only one road providing entry to the community. A small portion of the Hollywood-by-the-Sea subdivision touches the shore like a much large portion permanent a determined tract of homes. The Silver Strand Beach subdivision is along most of the shoreline south of the harbor entrance which is near but without right of entry to the Port of Hueneme.

The area is within the Hueneme School District.