| Address | Phone | Fax | ||
| Corporate Center | 301 Veterans Parkway New Lenox, IL 60451 | 815-485-6197 | 815-485-5975 | info@trinityservices.org |
| Admissions | Jen Klouse 301 Veterans Parkway New Lenox, IL 60451 | 815-485-6197 | 815-485-5975 | jklouse@trinityservices.org |
| Behavioral Health Services | Liane Lopez 301 Veterans Parkway New Lenox, IL 60451 | 815-717-1700 | 815-320-7355 | llopez@trinityservices.org |
| Employee Services | Tracy Dudek 301 Veterans Parkway New Lenox, IL 60451 | 815-485-6197 | 815-485-5975 | tdudek@trinityservices.org |
| Development Office | Sherry Ladislas 301 Veterans Parkway New Lenox, IL 60451 | 815-717-3750 | 815-485-5975 | sladislas@trinityservices.org |
| Chicago Area Administrative Office | Jennifer Hodges 2101 Oxford Road Des Plaines, IL 60018 | 847-299-2200 | 847-299-7142 | jhodges@trinityservices.org |
| Wilmington Administrative Office | Anita Goulding 1197 S. Buchanan Street Wilmington, IL 60481 | 815-476-5405 | 815-476-7361 | agoulding@trinityservices.org |
| Trinity Southwest Administrative Office | Mike Lowry 973 N. 6th Street Mascoutah, IL 62258 | 618-566-4200 | 618-566-3700 | mlowry@trinityservices.org |
| Peoria Administrative Office | Erica Litzsey 9121 N. Industrial Road Peoria, IL 61615 | 309-693-8115 | 309-689-5441 | ewitkowski@trinityservices.org |
| Central Illinois Administrative Office | Jennifer Price 1539 W. Route 6 Morris, IL 60450 | 815-941-1503 | 815-941-1543 | jprice@trinityservices.org |
| Carbondale Administrative Office | Kim Dykstra | 618-503-9525 | 618-351-1150 | kshontz@trinityservices.org |
| Outpatient Behavioral Health | Bonnie Hassan
| 815-462-4273 | bhassan@trinityservices.org |
