Post Offices List in Wayne County, Illinois:
| Cisne Post Office | 300 Simpson St, Cisne, IL 62823 |
| Fairfield Post Office | 220 E Delaware St, Fairfield, IL 62837 |
| Geff Post Office | 124 W Mechanic St, Geff, IL 62842 |
| Johnsonville Post Office | 301 N 2nd St, Johnsonville, IL 62850 |
| Keenes Post Office | 400 Sycamore St, Keenes, IL 62851 |
| Mount Erie Post Office | 102 W Main St, Mount Erie, IL 62446 |
| Sims Post Office | 601a S Railroad St, Sims, IL 62886 |
| Wayne City Post Office | 305 S Main St, Wayne City, IL 62895 |