The Jail System
Iowa has 99 counties. According to surveys completed in 2013, there are 100 jail and adult detention facilities, with a population of 4,010 inmates.
The Prison System
As of December 31, 2015, the Iowa prison population was 8,849. According the 2015 Annual Report, the Iowa Department of Corrections operating budget was $379 million.
The Community Corrections System
Iowa's eight Judicial District Departments of Correctional Services supervised about 22,000 probationers and 2,500 parolees as of June 30, 2015.