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Self-identified as mentally ill


December 15th, 2017
Jail Population - 8,178
Behind the Walls - 6,114
Community Corrections - 2,064


The Hardship Project
80 non-violent detainees are
unable to post a bond
of $1,000 or less




Unidentified Victims
of John Wayne Gacy



The Hardship Project

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A Mental Health Template
for American Jails
Saving Lives and Money 
through Commonsense Reform
Mental Health Transition Center


A Mental Health Template
for American Jails
Saving Lives and Money
through Commonsense Reform




Unjust Incarceration:
A Look Inside
A Broken System





Sheriff's Mental Health Hotline 773-674-CARE Sheriff's
Mental Health

A 24/7 resource for the following:

  • Former Cook County Jail inmates seeking mental health assistance and resources after release or discharge from the jail

  • Families and friends of currently incarcerated mentally ill inmates who are in need of special treatment and/or medication while in the Cook County Jail

  • Families and friends who need to relay potentially depressing news (death, serious injury, health problems, etc) to currently incarcerated inmates
    • This allows the Sheriff’s Office to help the inmate effectively cope with the news through supportive services
    • Click here for additional tips on communicating with incarcerated loved ones

  • Non-mental health related inmate inquiries should be directed to 773-674-JAIL (5245)

Concealed Carry Concealed Carry Objections 5,743 Cook County
Concealed Carry




Smart911 technology is now available for Cook County

Inmate Work/Program Verification Form



Constantin Medina Constantin Medina

Name: Constantin Medina
Date of Birth: 12/31/85
Charge: Criminal sexual abuse
Last Known Address:
1000 block of Boxwood, Mt. Prospect

Jose Mancilla Jose Mancilla

Name: Jose Mancilla
Date of Birth: 03/19/86
Charge: Aggravated child pornography - possession of film/video
Last Known Address:
4800 block of South Seeley, Chicago


Raudel Arteaga

Name: Raudel Arteaga
Date of Birth:10/04/54
Charge: Aggravated Criminal Sexual Assault With A Weapon
Last Known Address:
2800 blk N. McVicker, Chicago

Additional Profiles

Pursuant to the Sex Offender and Child Murderer Community Notification Law, 730 ILCS 152/101,et seq., the Cook County Sheriff's Police Department maintains a list of sex offenders residing in UNINCORPORATED COOK COUNTY who are required to register under the Sex Offender Registration Act, 730 ILCS 150/2, et seq. A list of registered sex offenders is being provided on this web site as a public service.

Individuals included within this registry are included solely by virtue of their conviction record and Illinois law. The main purpose of providing this data on the Internet is to make the information more easily available and accessible, not to warn about any specific individual. Anyone who uses information contained in the Sex Offender Database to commit a criminal act against another person is subject to criminal prosecution.

Although every effort is made to keep this list accurate and current, the sheriff's department cannot guarantee the accuracy of this information. Offenders may have moved and failed to notify the sheriff's department as required by law. If any information presented in this web site is known to be outdated, please contact the Cook County Sheriff's Police Sex Registration Unit at 708-865-4905, or mail to Sex Offender Registration, c/o Cook County Sheriff's Police, 1401 S. Maybrook Drive, Maywood, Illinois 60153.

For a complete list of all registered sex offenders in Illinois, visit

Unincorporated Cook County Sex Offender by TownshipsUnincorporated Cook County Sex Offender by Townships Bloom Township Elk Grove Township Lemont Township Leyden Township Lyons Township Maine Township Northfield Township Orland Township Palatine Township Proviso Township Rich Township Schaumburg Townwship Stickney Township Thornton Township Worth Township Sex Offenders Hanover Township Palos Township Bremen Township Wheeling Township










Illinois Sheriffs' Association College Scholarship Information


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