Virginia Beach, Virginia is 6.1 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: 659 km2 calculated
Virginia Beach is an independent city located in the U.S. state of Virginia. As of the 2010 census, the population was 437,994. In 2013, the population was estimated to be 448,479. It is the most populous city in Virginia as well as the 39th most populous in the United States. Wikipedia