| Business | Phone |
| Dimmick Twp Road District Rr 1, La Salle 61301 | (815) 223-4439 |
| La Salle Public Works Supt 745 2nd St, La Salle 61301 | (815) 223-6344 |
| La Salle City Engineer 745 2nd St, La Salle 61301 | (815) 223-7041 |
| La Salle City Water Billing 745 2nd St, La Salle 61301 | (815) 223-4579 |
| La Salle Comptroller's Office 745 2nd St, La Salle 61301 | (815) 223-4586 |
| La Salle Township Clerk 931 1st St, La Salle 61301 | (815) 223-0809 |
| La Salle Waste Water Lift Sta 1590 5th St, La Salle 61301 | (815) 224-1223 |