Palmdale, California is 3.2 times larger than Oceanside, California.
Area: 108 km2 calculated
Oceanside is a coastal city located on California's South Coast. It is the third-largest city in San Diego County, California. The city had a population of 183,095 at the 2010 census. Together with Carlsbad and Vista, it forms a tri-city area. Wikipedia
Area: 346 km2 calculated
Palmdale is a city located in the center of northern Los Angeles County, California, United States. Palmdale was the first community within the Antelope Valley to incorporate as a city on August 24, 1962; 47 years later, in November 2009, voters approved creating a charter city. Wikipedia