The Jail System
New Jersey has 21 counties. According to surveys completed in 2013, there are 22 jail and adult detention facilities, with a population of 15,235 inmates.
The Prison System
As of December 31, 2015, the New Jersey prison population was 20,489. The New Jersey Department of Corrections managed 12 facilities, with a budget of approximately $971 million.
The Community Corrections System
As of Dec. 31, 2015, there were 136,137 adults on probation and 15,180 adults on parole.