Los Angeles County’s two islands, Santa Catalina and San Clemente, are part of the eight-island group called the Channel Islands. The group extends from San Miguel in the north off the coast of Santa Barbara to San Clemente, 160 miles to the south. Los Angeles County’s own Santa Catalina, the most populated and visited of the islands, is the third largest of the group (75 square miles).
At one time, the islands were home to an abundance of sea otter, sea lions, and seals. Fur trappers, however, saw to their decimation during the 19th century.
Los Angeles County’s own San Clemente, along with San Miguel and San Nicolas, have been under U.S. Navy administration since shortly before World War II. These islands were used as bombing and missile test ranges. Only San Nicolas continues to be used for that purpose.
|San Miguel||8,960||Santa Barbara|
|Santa Rosa||53,760||Santa Barbara|
|Santa Cruz||61,440||Santa Barbara|
|Santa Barbara||640||Santa Barbara|
|Santa Catalina||48,000||Los Angeles|
|San Clemente||35,840||Los Angeles|
Palos Verdes Peninsula was once believed to have been an island.