Chart of Arizona largest employers by number of employees (2011)

In southern Arizona, the top ten largest public employers, as of 2011, were:

Reference 1: Employees (2011).

Reference 2: University of Arizona, State of Arizona, Davis–Monthan Air Force Base, Tucson Unified School District, U.S. Army Intelligence Center and Fort Huachuca, Pima County, City of Tucson, Tohono O'odham Nation, United States Border Patrol and Pinal County.

Source: http://en.wikipedia.org/wiki/Arizona