Tucson, Arizona is 8.1 times larger than Clearwater, Florida.
Area: 73 km2 calculated
Clearwater is a city located in Pinellas County, Florida, United States, nearly due west of Tampa and northwest of St. Petersburg. To the west of Clearwater lies the Gulf of Mexico and to the east lies Tampa Bay. As of the 2010 census, the city had a population of 107,685. Wikipedia
Area: 590 km2 calculated
Tucson is a city in and the county seat of Pima County, Arizona, United States, and home to the University of Arizona. The 2010 United States Census puts the city's population at 520,116, while the 2013 estimated population of the entire Tucson metropolitan area was 996,544. Wikipedia