| Business | Phone |
| Winnebago County Jury Comm 400 W State St 501, Rockford 61101 | (815) 987-3058 |
| Winnebago County Juvenile 5350 Northrock Dr, Rockford 61103 | (815) 282-6878 |
| Winnebago County Microfilm 400 W State St 101, Rockford 61101 | (815) 987-3031 |
| Winnebago County Planning Dept 404 Elm St 301, Rockford 61101 | (815) 987-2506 |
| Winnebago County Pub Defender 400 W State St 340, Rockford 61101 | (815) 987-2536 |
| Winnebago County Purchasing 404 Elm St 202, Rockford 61101 | (815) 987-3033 |
| Winnebago Bailiff Office 400 W State St, Rockford 61101 | (815) 987-2526 |
| Winnebago County Building Dept 404 Elm St 301, Rockford 61101 | (815) 987-3090 |
| Winnebago County Circuit Clerk 400 W State St 109, Rockford 61101 | (815) 987-3079 |
| Winnebago County Community Svc 420 W State St, Rockford 61101 | (815) 987-5981 |
| Winnebago County Coroner's Ofc 420 W State St B104, Rockford 61101 | (815) 987-5994 |
| Winnebago County Maintenance 400 W State St, Rockford 61101 | (815) 987-2559 |
| Winnebago County Data Proc 404 Elm St 508, Rockford 61101 | (815) 987-2532 |
| Winnebago County Election Ofc 404 Elm St 101, Rockford 61101 | (815) 987-3089 |
| Winnebago County Facility Mgr 404 Elm St 504, Rockford 61101 | (815) 987-5418 |
| Winnebago County Soil & Water 4833 Owen Center Rd, Rockford 61101 | (815) 965-2408 |
| Winnebago County Supvr-Assmnts 404 Elm St 403, Rockford 61101 | (815) 987-3024 |
| Veterans Assistance Commission 215 N Main St, Rockford 61101 | (815) 987-2542 |
| Casa 403 Elm St, Rockford 61101 | (815) 987-3199 |
| Honorable Kathryn Zenoff 400 W State St, Rockford 61101 | (815) 987-2503 |