Southwestern Illinois Correctional Center is a state prison in East St Louis, Illinois, run by the Illinois Department of Corrections. The state classifies it as minimum security. Federal facility data from 2020 put its capacity at about 763 beds.
Southwestern Illinois Correctional Center Address and Phone
- Facility type
- State prison
- Address
- 950 Kingshighway St, East St Louis, IL 62203Open in Google Maps
- Main phone
- (618) 394-2200
- Operated by
- Illinois Department of Corrections
- County
- St. Clair County
How to Find an Inmate at Southwestern Illinois Correctional Center
People serving state sentences are listed in the state's offender search, not on county jail rosters. Search by last and first name, or by the state inmate number if you have it; the result shows where the person is held now, which can change after a transfer.
Visiting, Mail and Phone Calls
Visiting days, visitor approval, dress rules and the mailing format for letters are set by the Illinois Department of Corrections and can change at short notice. Read the official facility page and call ahead before you travel.
Jails and Police Near Southwestern Illinois Correctional Center
Anyone arrested near East St Louis is booked into the county jail first; a state facility only receives people after sentencing, commitment or transfer.
Other State Prisons in Illinois
Open status checked against the official idoc.illinois.gov facility listing in November 2026. Address and phone come from that listing or, where it shows none, from the federal HIFLD prison dataset. This page lists no inmates.