The Illinois Department of Juvenile Justice (IDJJ) is the code department[1][2] of the Illinois state government that acts as the state juvenile corrections agency.
[3] As of 2014[update], the Illinois Youth Center (IYC) facilities in operation included the following detention centers, statewide:[4] Harrisburg, St. Charles, Pere Marquette, and Chicago house juvenile male offenders while Warrenville houses juvenile female offenders.
IYC Pere Marquette is a treatment facility for juvenile males.
The majority of youths committed to the department from the Chicago area go first to IYC St.
[4] Facilities in Kewanee and Murphysboro, previously Illinois Youth Centers, were closed and reopened as Adult Life Skills and Reentry Centers.