Florida (USA) is 1,740 times larger than Concord, California.
Florida is a state in the southeastern region of the United States, bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia, to the east by the Atlantic Ocean, and to the south by the Straits of Florida. Wikipedia
Area: 80 km2 calculated
Concord is the largest city in Contra Costa County, California, in the United States. At the 2010 census, the city had a population of 122,067. Founded in 1869 as the community of Todos Santos by Salvio Pacheco, the name was changed to Concord within months. Wikipedia