Florence (O'odham: S-auppag) is a town in and the county seat of Pinal County, Arizona, United States. The population was 17,054 at the 2000 census; according to 2008 Census Bureau estimates, the population of the town had grown to 23,685.
The oldest functioning Arizona State Prison complex, the Florence complex, is located in the town, and its preserved Main Street and open desert scenery was the setting of the major motion picture Murphy's Romance.
There are a total of 9 prisons from the county, state, federal and two private prisons. There are 3 state prisons located in Florence.