| Business | Phone |
| Lockport Building Dept 921 S State St, Lockport 60441 | (815) 838-2200 |
| Lockport City Adm 1212 S Farrell Rd, Lockport 60441 | (815) 838-2132 |
| Lockport City Hall Lockport 60441 | (815) 838-0549 |
| Lockport Sewage Treatment 425 W Division St, Lockport 60441 | (815) 838-1705 |
| Lockport Supervisor Ofc 222 E 9th St 310, Lockport 60441 | (815) 838-0380 |
| Lockport Township Dog Warden 222 E 9th St, Lockport 60441 | (815) 838-2257 |
| Lockport Twp Highway Comm 123 South Ave, Lockport 60441 | (815) 726-6056 |