The Cook County Jail is responsible for keeping and maintaining a safe and humane environment for both its correctional officers and their inmates. Their staff members will complete a rigorous training that is designed for both their safety and the safety of the inmates they are in charge of.

Majority of the inmates inside the facility have already been sentenced. The average sentence for someone who is serving time in the Cook County Jail – Division IX is a year or less.

Inmates who are deemed violent or may disrupt the peace will be separated from the general population of inmates.

The Cook County Jail – Division IX is a medium-security facility. The facility operates on a 24-hour basis. This facility will not house any juvenile inmates are housed in a different facility within the county. The Cook County Jail – Division IX will only house adult male and adult female inmates.

The Detention Center comes equipped with a housing area, booking area, laundry facility, medical ward, visiting areas, courtroom, and support areas.

This will have all the inmates that are currently sitting in the Cook County Jail. The Cook County Jail has its inmate roster available for the general public to look at.

The Cook County Jail is accredited by the Illinois Corrections Accreditation Commission.

In this online database, you will be able to look up inmates who have been charged and booked in the Cook County Jail – Division IX on or after July 25, 2009. The online inmate database is updated every 15 minutes with new information as it comes in. The Cook County Jail – Division IX has an online inmate database.

Cook County Jail – Division IX Sheriff's Office

Inmate Mailing Address

Inmate Name, ID, Housing #
Cook County Jail - Division IX
2834 West 31st Street, Chicago, IL, 60608

Cook County Jail – Division IX Prison Information