The institution with the highest average inmate age is Taylorville Correctional Center.
Illinois Prison Populations in March 2020
| Institution | Population | Average age |
|---|---|---|
| Taylorville Correctional Center | 982 | 45 |
| Big Muddy River Correctional Center | 1,182 | 44 |
| Dixon Correctional Center | 2,168 | 43 |
| East Moline Correctional Center | 1,101 | 41 |
| Robinson Correctional Center | 1,071 | 41 |
| Joliet Treatment Center | 213 | 41 |
| Pontiac Correctional Center | 1,127 | 41 |
| Lincoln Correctional Center | 959 | 40 |
| Menard Correctional Center | 2,201 | 40 |
| Stateville Correctional Center | 2,804 | 40 |
| Decatur Correctional Center | 535 | 40 |
| Hill Correctional Center | 1,609 | 40 |
| Vienna Correctional Center | 937 | 40 |
| Jacksonville Correctional Center | 1,066 | 39 |
| Danville Correctional Center | 1,599 | 39 |
| Graham Correctional Center | 1,845 | 39 |
| Logan Correctional Center | 1,575 | 39 |
| Centralia Correctional Center | 1,250 | 39 |
| Vandalia Correctional Center | 978 | 38 |
| Lawrence Correctional Center | 2,032 | 38 |
| Western Illinois Correctional Center | 1,658 | 38 |
| Illinois River Correctional Center | 1,810 | 38 |
| Kewanee Life Skills Re-Entry Center | 257 | 38 |
| Southwestern Illinois Correctional Center | 582 | 37 |
| Shawnee Correctional Center | 1,555 | 37 |
| Sheridan Correctional Center | 1,656 | 36 |
| Pinckneyville Correctional Center | 2,095 | 35 |
Alerts Sign-up