Fontana, California is 84% larger than Rialto, California.
Area: 58 km2 calculated
Rialto is a city in San Bernardino County, California, United States. According to Census Bureau estimates, the city had a population of 99,171 in 2010. Wikipedia
Area: 106 km2 calculated
Fontana is a city of 200,762 residents in San Bernardino County, California. Founded by Azariel Blanchard Miller in 1913, it remained essentially rural until World War II, when entrepreneur Henry J. Kaiser built a large steel mill in the area. Wikipedia