| Post Office Name | City/State | Address | Action |
|---|---|---|---|
| Columbia Post Office | Columbia, IL 62236 | 800 Columbia Ctr | View Details Get Directions |
| Fults Post Office | Fults, IL 62244 | 200 Main St | View Details Get Directions |
| Hecker Post Office | Hecker, IL 62248 | 140 W Monroe St | View Details Get Directions |
| New Athens Post Office | New Athens, IL 62264 | 200 S Benton St | View Details Get Directions |
| Prairie Du Rocher Post Office | Prairie Du Rocher, IL 62277 | 211 Henry St | View Details Get Directions |
| Red Bud Post Office | Red Bud, IL 62278 | 150 S Main St | View Details Get Directions |
| Renault Post Office | Renault, IL 62279 | 2130 Main St | View Details Get Directions |
| Valmeyer Post Office | Valmeyer, IL 62295 | 100 Knobloch Blvd | View Details Get Directions |
| Waterloo Post Office | Waterloo, IL 62298 | 305 E 3rd St | View Details Get Directions |
| Public Collection Box | New Athens, IL 62264 | 1102 Spotsylvania St | Get Directions |
| Public Collection Box | Waterloo, IL 62298 | 113 S Main St | Get Directions |
| Public Collection Box | Columbia, IL 62236 | 115 W Cherry St | Get Directions |
| Public Collection Box | Waterloo, IL 62298 | 150 Waterloo Commons Dr | Get Directions |
| Public Collection Box | Waterloo, IL 62298 | 501 N Market St | Get Directions |
| Public Collection Box | Waterloo, IL 62298 | 529 S Church St | Get Directions |
| Public Collection Box | Columbia, IL 62236 | 616 N Main St | Get Directions |
| Public Collection Box | Columbia, IL 62236 | 800 Columbia Centre | Get Directions |
| Public Collection Box | Waterloo, IL 62298 | 901 Illinois Ave | Get Directions |
| Public Collection Box | Waterloo, IL 62298 | 961 N Market St | Get Directions |
