Post Offices List in De Witt County, Illinois:
| Clinton Post Office | 105 N Quincy St, Clinton, IL 61727 |
| Dewitt Post Office | 105 Chicago St, Dewitt, IL 61735 |
| Farmer City Post Office | 110 E Green St, Farmer City, IL 61842 |
| Kenney Post Office | 208 S Johnston St, Kenney, IL 61749 |
| Wapella Post Office | 305 Main St, Wapella, IL 61777 |
| Waynesville Post Office | 108 S Isham St, Waynesville, IL 61778 |
| Weldon Post Office | 450 Maple St, Weldon, IL 61882 |