43 departments across four campuses in downtown Joliet. Search by name, service, address, or category.
| Department | Category | Address | Phone |
|---|---|---|---|
| Animal Protection Services | Public Health & Safety | 22452 S. Cherry Hill Rd., Joliet, IL 60433 | 815.462.5633 |
| Auditor | Finance & Revenue | 302 N. Chicago St., Joliet, IL 60432 | 815.740.4609 |
| Board of Review | Finance & Revenue | 302 N. Chicago St., Joliet, IL 60432 | 815.740.4670 |
| Circuit Clerk | Judicial Services | 100 W. Jefferson St., Joliet, IL 60432 | 815.727.8592 |
| Circuit Court | Judicial Services | 100 W. Jefferson St., Joliet, IL 60432 | 815.727.8592 |
| Coroner | Judicial Services | 16857 W. Laraway Rd., Joliet, IL 60433 | 815.727.8455 |
| County Board | Administration | 302 N. Chicago St., Joliet, IL 60432 | 815.740.4602 |
| County Clerk - Main Office | Administration | 302 N. Chicago St., Joliet, IL 60432 | 815.740.4615 |
| County Clerk - Crete Township Branch | Administration | 1367 Wood St, Crete, IL 60417 | 708.672.8279 |
| County Clerk - DuPage Township Branch | Administration | 241 Canterbury Ln., Bolingbrook, IL 60440 | 630.759.1317 |
| County Clerk - Plainfield Township Branch | Administration | 22525 W. Lockport Rd., Plainfield, IL 60544 | 815.436.8308 |
| County Executive | Administration | 302 N. Chicago St., Joliet, IL 60432 | 815.740.4601 |
| Division of Transportation | Economic Development | 16841 W. Laraway Rd., Joliet, IL 60433 | 815.727.8476 |
| Emergency Management Agency (EMA) | Public Health & Safety | 302 N. Chicago St., Joliet, IL 60432 | 815.740.8351 |
| Forest Preserve District | Environment & Recreation | 17540 W Laraway Rd., Joliet, IL 60433 | 815.727.8700 |
| Geographic Information Systems | Administration | 302 N. Chicago St., Joliet, IL 60432 | 815.774.6343 |
| Health Department | Public Health & Safety | 501 Ella Ave., Joliet, IL 60433 | 815.727.8480 |
| Human Resources Department | Administration | 302 N. Chicago St., Joliet, IL 60432 | 815.774.7489 |
| Information, Communication, & Technology (ICT) | Administration | 302 N. Chicago St., Joliet, IL 60432 | 815.740.8361 |
| Adult Detention Facility - Jail | Public Health & Safety | 95 S. Chicago St., Joliet, IL 60436 | 815.740.1250 |
| Jury Commission | Judicial Services | 100 W. Jefferson St., Joliet, IL 60432 | 815.727.8614 |
| River Valley - Juvenile Detention Center | Judicial Services | 3200 W. McDonough St., Joliet, IL 60431 | 815.730.7070 |
| Juvenile Circuit Clerk | Judicial Services | 3200 McDonough St., Joliet, IL 60431 | 815.730.7155 |
| Juvenile Probation | Judicial Services | 3200 McDonough St., Joliet, IL 60431 | 815.730.7120 |
| Juvenile Public Defender | Judicial Services | 3200 McDonough St., Joliet, IL 60431 | 815.730.7090 |
| Juvenile State's Attorney | Judicial Services | 3200 McDonough St., Joliet, IL 60431 | 815.730.7075 |
| Land Use Department | Economic Development | 58 East Clinton St., Joliet, IL 60432 | 815.774.3321 |
| Law Library | Judicial Services | 100 W. Jefferson St., Joliet, IL 60432 | 815.727.8619 |
| Probation - Adult | Judicial Services | 57 W. Jefferson St., Joliet, IL 60432 | 815.727.8446 |
| Public Building Commission | Administration | 25 North Ottawa St. Suite #324, Joliet, IL 60432 | 815.727.8901 |
| Public Defender | Judicial Services | 58 East Clinton St., Joliet, IL 60432 | 815.727.8666 |
| Purchasing | Administration | 302 N. Chicago St., Joliet, IL 60432 | 815.740.4605 |
| Recorder of Deeds | Judicial Services | 158 N. Scott St., Joliet, IL 60432 | 815.740.4637 |
| Regional Supt. of Schools | Administration | 116 N. Chicago St., Suite 400, Joliet, IL 60432 | 815.740.8360 |
| Sheriff | Public Health & Safety | 16911 W Laraway Rd Suite 101, Joliet, IL 60433 | 815.727.8895 |
| Sheriff's Merit Commission | Public Health & Safety | 16911 S. Laraway Rd. Suite 201, Joliet, IL 60433 | 815.727.5680 |
| State's Attorney | Public Health & Safety | 57 N. Ottawa St., Joliet, IL 60432 | 815.727.8453 |
| Sunny Hill Nursing Home | Special Services | 421 Doris Ave., Joliet, IL 60433 | 815.727.8710 |
| Supervisor of Assessments | Finance & Revenue | 302 N. Chicago St., Joliet, IL 60432 | 815.740.4648 |
| Treasurer | Finance & Revenue | 302 N. Chicago St., Joliet, IL 60432 | 815.740.4675 |
| Tuberculosis Clinic | Public Health & Safety | 503 Ella Ave., Joliet, IL 60433 | 815.740.4420 |
| Veterans Assistance Commission (VAC) | Special Services | 2400 Glenwood Ave. 1st Fl., Joliet, IL 60435 | 815.740.8389 |
| Workforce Investment Board | Economic Development | 203 N. Ottawa St. Ste.100, Joliet, IL 60432 | 815.727.5670 |
| Workforce Services Division | Economic Development | 2400 Glenwood Ave. 1st Fl., Joliet, IL 60432 | 815.727.4444 |