Map of St. Clair County
Every point is a facility. Select one to open its record.
Prisons & jails
4 facilities
| Southwestern Illinois Correctional Center | State prison | East St Louis | (618) 394-2200 | 733 |
| Southwestern Illinois Work Camp | State prison | East St Louis | (618) 394-2200 | 100 |
| St Clair County Jail | County jail | Belleville | (618) 456-7606 | 434 |
| St. Clair County Juvenile Detention Center | Juvenile facility | Belleville | (618) 397-9546 | — |
Police & law enforcement
29 agencies
Frequently asked
How many prisons and jails are in St. Clair County, Illinois?
The atlas lists 4 prisons, jails and detention centres in St. Clair County, Illinois, including 2 state prisons and 1 juvenile facility.
What is the largest prison in St. Clair County, Illinois?
By the capacity recorded in its sources, Southwestern Illinois Correctional Center is the largest, with about 733 places.
How many police stations are in St. Clair County, Illinois?
29 police units are listed for St. Clair County, Illinois: 27 police departments, 1 sheriff's office and 1 special jurisdiction police.
How do I find out if someone is in jail in St. Clair County, Illinois?
Call the county jail or use the sheriff's online inmate lookup. Official agency records are the final authority on custody status.
Are telephone numbers available for these facilities?
Yes for 33 entries of 33. Where a number is missing, the facility page shows its address and map location; details can change, so the agency's own website is the authority.
What specialised facilities are there in St. Clair County, Illinois?
The atlas lists 1 juvenile facility here. Each has its own page with the address and, where published, a phone number.
Which town in St. Clair County, Illinois has the most prisons?
East St Louis has the most, with 2 places of detention in the atlas, out of 2 towns with at least one.
Which neighbouring areas of Illinois are covered?
Illinois has 101 other areas in the atlas; Cook County has the most entries (179), followed by Lake County.