Joliet, Illinois is 36% larger than Oceanside, California.
Area: 147 km2 calculated
Joliet is a city in Will and Kendall counties in the US state of Illinois, located 40 miles southwest of Chicago. It is the county seat of Will County. As of the 2010 census, the city was the fourth-most populated in Illinois, with a population of 147,433. Wikipedia
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