| Armington Post Office |
104 N Griffin St, Armington, IL 61721 |
| Deer Creek Post Office |
104 E 1st Ave, Deer Creek, IL 61733 |
| Delavan Post Office |
114 E 5th St, Delavan, IL 61734 |
| Green Valley Post Office |
105 W Main St, Green Valley, IL 61534 |
| Groveland Post Office |
18769 Springfield Rd, Groveland, IL 61535 |
| Hopedale Post Office |
118 Se Main St, Hopedale, IL 61747 |
| Mackinaw Post Office |
110 S Main St, Mackinaw, IL 61755 |
| Minier Post Office |
219 W Chicago St, Minier, IL 61759 |
| Morton Post Office |
600 W Jefferson St, Morton, IL 61550 |
| Pekin Post Office |
514 Broadway St, Pekin, IL 61554 |
| South Pekin Post Office |
306 Main St, South Pekin, IL 61564 |
| Tremont Post Office |
109 W Walnut St, Tremont, IL 61568 |
| Washington Post Office |
106 S High St, Washington, IL 61571 |
| East Peoria Post Office |
415 E Washington St, East Peoria, IL 61611 |
| East Peoria Branch Post Office |
401 E Washington St, East Peoria, IL 61611 |
