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IDOC Inmate Search & Illinois Inmate Search
Get detailed records of inmates serving their sentence in Illinois state prisons which are maintained by Illinois Department of Corrections IDOC.
County jails, police jails, city jails in Illinois maintains all the inmate database records individually and one can go to their individual website for detailed information.
Detailed instructions are given below so that you can lookup inmate information from the database across all prison types.

Illinois Department of Corrections (IDOC)
Website
Illinois Inmate Search
Address
1301 Concordia Court, P.O. Box 19277, Springfield, IL 62794-9277
Phone
Get detailed records of inmates serving their sentence in Illinois state prisons using Inmate Lookup. Records are maintained by the Illinois Department of Corrections IDOC.
The respective IDOC maintains a centralized database of inmates that anyone can find easily.
County jails, police jails, and city jails in Illinois maintain all the inmate database records individually and one can go to their individual website for detailed information.
Inmate Lookup provides you with a list of these facilities below. Each has a link to a page with more detailed information, like phone numbers, location, and procedures for visiting inmates.
Each facility’s page here at Inmate Lookup provides a link to its website. There, you may be able to find information about inmates they are currently holding along with details like projected release date. However, not all facilities have the same level of information available.
You may need to call them on the phone to find the information you’re looking for.
Detailed instructions are given below so that you can look up inmate information from the IDOC database. Further down on this page we provide a listing of city jails, county jails, and other facilities in Illinois along with contact information. Again, with each listing, Inmate Lookup also provides a link to their website.
Illinois Department of Corrections IDOC Inmate Search:
The Department of Corrections operates and manages all the state prisons in Illinois. To search any inmate in IDOC follow the steps put together by Inmate Lookup and shared below:
Step 1: Visit the Illinois IDOC inmate search website.
Step 2: Enter the inmate’s name, id, age, gender, and DOB in the required fields.
Step 3: Click on the ‘Submit’ button.
On the results page, you can see the list of all inmates matching the specified criteria.
You can also find out information about an IDOC inmate by contacting the Illinois Department of Corrections at:
Website: http://www.idoc.state.il.us/
Illinois Inmate Search: https://www.illinois.gov/idoc/Offender/Pages/InmateSearch.aspx
Address: 1301 Concordia Court, P.O. Box 19277, Springfield, IL 62794-9277
Phone: 217-558-2200/ 2008
If you discover the person you’re looking for is not in a state facility, Inmate Lookup has assembled a comprehensive listing of other facilities lower down on this page.
Frequently Asked Questions about Performing an Inmate Search
What is the difference between jail and prison?
Though both types of facilities have to do with public safety, the main differences have to do with the length of confinement and who runs them. Generally speaking, jails are used to hold persons who have been arrested and are awaiting trial in court or to detain offenders who have been convicted of minor crimes. They are operated by local governments on the city or county level. Inmate Lookup provides you with an accurate list of these kinds of facilities in Illinois (see below).
Prisons, on the other hand, house offenders who have been convicted of more serious offenses and who have a projected release date farther in the future. They are typically run by the state or the federal government. Examples in Illinois include the Danville Correctional Center and the Stateville Correctional Center. Inmate Lookup walks you through the process of finding someone in a state facility at the top of this page.
How do I lookup an IDOC ID number?
The IDOC ID number is assigned to each inmate who is in IDOC custody following a conviction. If you know the number, you can use it to look up an inmate in the system.You can find the number on the IDOC website listed above by Inmate Lookup. You will need to have either the name or SID number of the person you are looking for.
What is a SID number?
A SID number is an abbreviation for State Identification Number. Individuals who are arrested for a crime are assigned a SID number, which is used for record-keeping and identification purposes. You can use the State Identification Number to look up an Illinois inmate in the IDOC inmate database. Inmate Lookup has provided easy instructions for how to do this near the top of this page.
What kinds of information can I find out about inmates in an inmate search?
Inmate Lookup provides you with simple instructions for searching the ODRC database near the top of the page. When you look up an offender in the IDOC database, you’ll be provided with the following information collected in the system:
- SID number (State Identification Number)
- IDOC ID number (Illinois Department of Corrections number)
- Name
- Race
- Gender
- Age
- Maximum sentence date
- Current facility
- Projected release date
- Parole eligibility date
- Inmate visitation eligible
- Offense history
If available, you will also see information about the scheduled release date, type, and location. A space near the bottom includes the offense history, which gives you details about their initial conviction and any additional convictions. Data includes the sentencing date and Illinois county locations where offenses were committed. You’ll also see the case number and the length of each sentence. The current facility listed links to another page where you can find the address and phone number for that facility if you need to find out about how to contact or visit an inmate.
You won’t find photos (mugshots) or their date of birth.
You can also find out information about an IDOC inmate by writing to the Illinois Department of Corrections,1301 Concordia Court, P.O. Box 19277, Springfield, IL 62794-9277.
Information obtained from the database about an IDOC inmate is only to be used for permitted purposes.
If you need to find out about a prisoner who is not in the state system but rather in a local facility, Inmate Lookup has pulled together a comprehensive list below.
Illinois Department of Corrections (IDOC) Inmate Searcher
Fill out the form below and receive a detailed report on an inmate. This includes current and previous arrest records, social media handles, current and previous addresses & phone numbers.
Prisons and Jails in Illinois
General Stats for Illinois
44,959
Illinois Total No. of Inmates
88,894
Number of people under Probation Supervision
225
Prison population rate: 100,000 residents
24,744
Parole Population
4,334
Incarcerated individuals with sentences of 50 years or longer
95
Inmates sentenced to more than 1 Year in private prisons
Sex
Sex
%
Total
Male
95.4
27,159
Female
4.6
1,310
Youth
Type
%
Total
Committed
37.77
315
Detained
61.51
513
Diverted
0
0