| Business | Phone |
| Wilmington City Garage 745 Widows Rd, Wilmington 60481 | (815) 476-3104 |
| Wilmington Sewage Disposal 100 W Stewart St, Wilmington 60481 | (815) 476-7471 |
| Wilmington Township Supervisor 30515 S Kavanaugh Rd, Wilmington 60481 | (815) 476-9272 |
| Wilmington City Water Plant 745 Widows Rd, Wilmington 60481 | (815) 476-6732 |