San Bernardino, California is 50% larger than Fontana, California.
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
Area: 159 km2 calculated
San Bernardino is a city located in the Riverside-San Bernardino metropolitan area. It serves as the county seat of San Bernardino County, California, United States. Wikipedia