Illinois Inmate Search
Official inmate lookup tools, 25 state prisons, all 102 county jail directories, mailing rules, and verified DOC links for Illinois.
Illinois Department of Corrections
Official inmate locator for individuals in Illinois state custody.
State Prisons in Illinois
25 state-operated adult correctional facilities. Inmate searches go through the single statewide DOC locator above.
Need full directory details (addresses, phone numbers, visitation)? View official IL DOC facility directory →
County Jails in Illinois
All 102 Illinois counties. Cook County and other large counties have separate jail lookup systems. Click any county to find its sheriff's official inmate roster.
- Adams County
- Alexander County
- Bond County
- Boone County
- Brown County
- Bureau County
- Calhoun County
- Carroll County
- Cass County
- Champaign County
- Christian County
- Clark County
- Clay County
- Clinton County
- Coles County
- Cook County★
- Crawford County
- Cumberland County
- De Witt County
- DeKalb County
- Douglas County
- DuPage County
- Edgar County
- Edwards County
Sheriff links open a Google search for the official county roster. Each sheriff's office operates its jail independently from the state DOC system. State slug: illinois
Mailing Guidance
Use the inmate's full legal name and ID. Always verify mail rules with the specific facility.
Mailing Label Generator →Visitation
Visitation rules vary by facility and security level. Check the official DOC site for schedules, approved visitor lists, and ID requirements.
Deposits / Money
Most states use approved third-party providers for inmate trust deposits. Always verify the official link from the DOC website.
How Illinois's correctional system works
Illinois maintains a state-level Department of Corrections that holds individuals sentenced to longer terms. County and city jails operate independently from the state system. Federal inmates are not housed in state facilities — search the BOP locator instead.
Browse other states
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· Always confirm details on the official source.
Notice: NmateFinder does not host inmate records. We route users to official sources. Always verify information directly with the relevant government agency.