| Auburn Post Office |
202 S 5th St, Auburn, IL 62615 |
| Buffalo Post Office |
102 W Elm St, Buffalo, IL 62515 |
| Cantrall Post Office |
9446 State Route 29, Cantrall, IL 62625 |
| Capitol Post Office |
401 S Spring St, Springfield, IL 62706 |
| Chatham Post Office |
111 E Walnut St, Chatham, IL 62629 |
| Dawson Post Office |
106 N Constant St, Dawson, IL 62520 |
| Divernon Post Office |
157 W Dodds St, Divernon, IL 62530 |
| Downtown Springfield Post Office |
411 E Monroe St, Springfield, IL 62701 |
| Glenarm Post Office |
53 Judd Rd, Glenarm, IL 62536 |
| Illiopolis Post Office |
463 Louisa St, Illiopolis, IL 62539 |
| Loami Post Office |
100 Church St, Loami, IL 62661 |
| Mechanicsburg Post Office |
301 W Main St, Mechanicsburg, IL 62545 |
| New Berlin Post Office |
102 E Illinois St, New Berlin, IL 62670 |
| Northeast Annex Post Office |
1927 E Sangamon Ave, Springfield, IL 62702 |
| Pawnee Post Office |
620 5th St, Pawnee, IL 62558 |
| Pleasant Plains Post Office |
210 N Cartwright St, Pleasant Plains, IL 62677 |
| Riverton Post Office |
619 N 7th St, Riverton, IL 62561 |
| Rochester Post Office |
200 S Walnut St, Rochester, IL 62563 |
| Sherman Post Office |
2605 E Andrew Rd, Sherman, IL 62684 |
| Springfield Post Office |
2105 E Cook St, Springfield, IL 62703 |
| Southwest Post Office |
1760 Wabash Ave, Springfield, IL 62704 |
| Thayer Post Office |
210 E Main St, Thayer, IL 62689 |
| Williamsville Post Office |
100 E Main St, Williamsville, IL 62693 |
