Joliet Treatment Center
Joliet Treatment Center
Location: Joliet, IL
Security Level: Multi-Security, Multi-Disciplinary
History: Opened in October 2017, Joliet Treatment Center (JTC) is a facility for male IDOC patients with severe mental illness, providing treatment to high-risk, high-need individuals. Joliet Inpatient Treatment Center (JITC) was newly constructed and opened in June 2022 to provide the most intensive level of care for adult male and female IDOC patients who struggle with severe mental illness and for those requiring long-term or intensive medical care.
Mailing/Contact Information:
Individual In Custody mailing address: 2848 West McDonough, Joliet, IL 60436
Telephone number (815) 730-4400
Population and program participation information sourced from January 1, 2026 IDOC Quarterly Report
Joliet Inpatient Treatment Center Population: 79
Rated Capacity: 168
Percent of Capacity: 47.0%
Joliet Treatment Center (General Pop) Population: 32
Rated Capacity: 32
Percent of Capacity: 100%
Joliet Treatment Center Population: 106
Rated Capacity: 233
Percent of Capacity: 45.5%
Total Joliet Population: 217
Educational & Vocational Participants: 28 (12.9%)
Courses offered with participants: ABE, Advanced ABE, ASE, and Commercial Custodian
State Representatives: Current as of January 2026
Lawrence Walsh (D) – IL House District 86
Springfield Office: 200-9S Stratton Office Building, Springfield, IL 62706, (217) 782-8090
District Office: 3141 W. Jefferson Street, Joliet, IL 60435, (815) 730-8600
Rachel Ventura (D) – IL Senate District 43
Springfield Office: 119B Capitol Building, Springfield, IL 62706, (217) 782-8800
District Office: 221 Springfield Avenue, Unit 3, Joliet, IL 60435, (331) 290-0443
