People in Illinois state prison
People sentenced to more than about a year for a state crime are held by Illinois Department of Corrections. Use its own offender search to find them. How to use the IDOC inmate search.
Illinois counties
Showing 48 of 102 counties: the most populous, plus those with a live jail roster or one of the largest prisons. Pick the county where the arrest happened, or open the full A to Z list.
- Adams County
- Boone County
- Brown County
- Champaign County
- Clinton County
- Coles County
- Cook County
- DeKalb County
- DuPage County
- Effingham County
- Franklin County
- Fulton County
- Grundy County
- Henry County
- Jackson County
- Jefferson County
- Johnson County
- Kane County
- Kankakee County
- Kendall County
- Knox County
- Lake County
- LaSalle County
- Lee County
- Livingston County
- Macon County
- Macoupin County
- Madison County
- Marion County
- McHenry County
- McLean County
- Monroe County
- Montgomery County
- Ogle County
- Peoria County
- Perry County
- Randolph County
- Rock Island County
- Sangamon County
- St. Clair County
- Stephenson County
- Tazewell County
- Vermilion County
- Whiteside County
- Will County
- Williamson County
- Winnebago County
- Woodford County
Largest state prisons in Illinois
12 of 45 shown, by capacity. Every state prison is listed on the page of the county it is in.
- Stateville Correctional Center State prison in Joliet, Will County
- Pinckneyville Correctional Center State prison in Pinckneyville, Perry County
- Menard Correctional Center State prison in Menard, Randolph County
- Western Illinois Correctional Center State prison in Mount Sterling, Brown County
- Sheridan Correctional Center State prison in Sheridan, LaSalle County
- Illinois River Correctional Center State prison in Canton, Fulton County
- Graham Correctional Center State prison in Hillsboro, Montgomery County
- Dixon Correctional Center State prison in Dixon, Lee County
- Big Muddy River Correctional Center State prison in Ina, Jefferson County
- Shawnee Correctional Center State prison in Vienna, Johnson County
- Danville Correctional Center State prison in Danville, Vermilion County
- Hill Correctional Center State prison in Galesburg, Knox County
Largest federal facilities in Illinois
5 of 9 shown, by capacity. All federal prisons, by state.
Questions about Illinois inmate search
How do I find someone in an Illinois county jail?
Search the name at the top of this page, or pick the county where the arrest happened from the 102 counties we cover. We do not copy a live jail roster in Illinois yet, so each county page links the jail's own lookup or phone number where we have one. You can also call the jail with the person's full name and date of birth.
How do I find someone in Illinois state prison?
People sentenced to more than about a year for a state crime are held by the Illinois Department of Corrections. Its own offender search is the source of record. We list 45 state prisons in Illinois.
How many jails and prisons are there in Illinois?
We list 173 facilities in Illinois: 101 county jails, 45 state prisons, 9 federal facilities and 18 other facilities. Each facility page has its address, phone number and how to visit, call, send money and post bail.
Guides
Guides that can help
Free, plain-English guides from searchinmates.org.
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How bail works
Cash bail, bail bonds, what you get back and how to post bail.
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What happens after an arrest
Court dates, public defenders and how a case moves forward, in plain English.