The city of Seal Beach is located in Orange County, California. In 2010, the population of the city was 24,168, an increase from 24,157 in 2000. Orange County's Seal Beach is located in the westernmost corner. The city of Long Beach and adjacent San Pedro Bay are located just across the border from Los Angeles County in the northwest. Huntington Harbour, a neighborhood of Huntington Beach, and Sunset Beach, another Huntington Beach neighborhood, are located southeast of Huntington Harbour. Westminster and West Garden Grove, part of Garden Grove, lie to the east of the neighborhood. The unincorporated community of Rossmoor and the city of Los Alamitos lie to the north. Naval Weapons Station Seal Beach occupies most of the city's land.