The Jail System
Maine has 16 counties. According to surveys completed in 2013, there are 15 jail and adult detention facilities, with a population of 1,750 inmates.
The Prison System
As of December 31, 2015, the Maine prison population was 2,279. The state DOC operates six adult facilities.
The Community Corrections System
The average probation population supervised under the Division of Adult Community Corrections was 7,300, as of 2016. Maine does not have a parole system.