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is a city in Orange County, California. As of 2000, its population was 24,157. The city was incorporated on 25 October, 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 the unincorporated community of Sunset 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.
Early on, the area that is now Seal Beach was known as "Anaheim Landing", as the boat landing and seaside recreation area named after the nearby town of Anaheim.
By the 20th century, it was known as Bay City, but there was already a Bay City located in Northern California. When the time came to incorporate on 25 October 1915, the town was named Seal Beach. The town became a popular recreation destination in the area, and featured a beach-side amusement park long before Disneyland was founded inland.
was originally constructed during World War II for loading, unloading, and storing of ammunition for the Pacific Fleet, and especially those US Navy warships home-ported in Long Beach and San Diego, California. With closure of the Concord Naval Weapons Station in Northern California, it has become the primary source of munitions for a majority of the U.S. Pacific Fleet.