Post Offices List in Ellis County, Oklahoma:
| Arnett Post Office | 107 S Washington St, Arnett, OK 73832 |
| Fargo Post Office | 216 S Main St, Fargo, OK 73840 |
| Gage Post Office | 414 N Main St, Gage, OK 73843 |
| Shattuck Post Office | 513 S Main St, Shattuck, OK 73858 |