| Post Office Name | City/State | Address | Phone Number | Action |
|---|---|---|---|---|
| Alton Post Office | ALTON, IL 62002 | 2350 Homer M Adams Pkwy | 6184622501 | View Details Get Directions |
| Alton Square Post Office | ALTON, IL 62002 | 117 Alton Sq | 6184634728 | View Details Get Directions |
| Upper Alton Post Office | ALTON, IL 62002 | 1624 Main St | 6184626014 | View Details Get Directions |