| Business | Phone |
| Coloma Township Roads & Bridge 309 W 14th St, Rock Falls 61071 | (815) 625-3207 |
| Coloma Township Supervisor 1200 Prophetstown Rd, Rock Falls 61071 | (815) 625-5981 |
| Rock Falls City Administration 603 W 10th St, Rock Falls 61071 | (815) 622-1111 |
| Rock Falls City Building Dept 603 W 10th St, Rock Falls 61071 | (815) 622-1108 |
| Rock Falls City Electric Dept 1109 Industrial Park Rd, Rock Falls 61071 | (815) 622-1145 |
| Rock Falls Electric & Water 603 W 10th St, Rock Falls 61071 | (815) 622-1116 |
| Montmorency Township Garage 29277 E Thome Rd, Rock Falls 61071 | (815) 625-8663 |