Riverside, California is 3.3 times larger than Newark, New Jersey.
Area: 63 km2 calculated
Population: 277,727 (2012)
Newark is the largest city in the U.S. state of New Jersey, and the county seat of Essex County. Wikipedia
Area: 208 km2 calculated
Population: 313,673 (2012)
Riverside is a city in Riverside County, California, United States, located in the Inland Empire metropolitan area. Riverside is the county seat of the eponymous county and named for its location beside the Santa Ana River. Wikipedia