Seal Beach is a city in Orange County, California. As of the 2010 census, the population was 24,168, up from 24,157 at the 2000 census. The city was incorporated on October 25, 1915.
Seal Beach is located in the westernmost corner of Orange County. To the northwest, just across the border with Los Angeles County, lies the city of Long Beach and the adjacent San Pedro Bay. To the southeast are Huntington Harbour, a neighborhood of Huntington Beach, and Sunset Beach, also part of Huntington Beach. To the east lie the city of Westminster and the neighborhood of West Garden Grove, part of the city of Garden Grove. To the north lie the unincorporated community of Rossmoor and the city of Los Alamitos.
The major employer in Seal Beach is the Boeing Company, employing roughly 1,000 people. Its facility was originally built to manufacture the second stage of the Saturn V rocket for NASA’s Apollo manned space flight missions to the Moon and for the Skylab program. Boeing Homeland Security & Services (airport security, etc.) is based in Seal Beach and Boeing Space & Intelligence Systems (satellite systems and classified programs) is headquartered in Seal Beach.
Seal Beach is currently under the Los Alamitos School District. Younger students (K-5) go to McGaugh Elementary School, Hopkinson Elementary School, Rossmoor Elementary, Lee Elementary, or Weaver Elementary. Students in grades 6–8 attend either Oak Middle School or McAuliffe Middle School. High school students go to Los Alamitos High School. Until 2000, the Orange County High School of the Arts was part of Los Alamitos High School. In 2000, the school district suffered a major blow when the community lost the Orange County High School of the Arts to Santa Ana, where it is now located.