Division I is the oldest facility of the Cook County Jail. All original tasks and facilities of the Cook County Jail were carried out at Division I. Death sentences were carried out at Cook County Jail until the 1960’s. Division I is a maximum security division.
Division 2 is a series of dormitory setting buildings that house minimum and medium security detainees. Division two has the second oldest structures.
Division 3 is a minimum and medium security area that hosues the jail’s gang free and veteran tiers.
Division 4 is the Women’s Division of the jail.
Divisions 5 & 6
A two identical divisions that hold medium security inmates and hold about 1m000 detainees.
Division 5 also houses the receiving room. Bonding is also handled at Division 5. A SecurPass machines checks for contraband. Then detainnees proceed to Bull Pen 4. The inmate is then sent to a digital mug shot station. Officer check detainees for gang tatoos. The tattoos are photographed and placed into an intelligence system that helps the criminal intelligence unit identify gangs and tattoos.
No information about Division 6, 7 or 8.
Division 9 opened in the 1990’s and houses about 1,000 inmates.
Division 10 is maximum security, which has transitioned into a medical division. The division houses about 700 detainees, and is coordinated with Cermak Hospital.
Division 11 is the newest and largest building and houses about 1,600 medium security inmates. It has four pods, a state of the art electronic monitoring system with a central control area that can control all of the video and mechanics throughout the division.