The Pima County Sheriff's Department (PCSD) is an American law enforcement agency that serves the unincorporated areas of Pima County, Arizona. It is the seventh largest sheriff's department in the nation. It operates six district offices and three smaller satellite offices. The Corrections Bureau has four facilities which houses on average 1,850 inmates per day. The department employs about 516 sworn officers and more than 872 civilian employees and corrections personnel and utilizes the services of over 400 volunteers. Its headquarters is on East Benson Highway in Tucson, Arizona.