Post Offices List in Franklin County, Kansas:
| Lane Post Office | 416 Kansas Ave, Lane, KS 66042 |
| Ottawa Post Office | 401 S Hickory St, Ottawa, KS 66067 |
| Pomona Post Office | 230 Madison St, Pomona, KS 66076 |
| Princeton Post Office | 314 Galveston St, Princeton, KS 66078 |
| Rantoul Post Office | 106 E Main St, Rantoul, KS 66079 |
| Richmond Post Office | 117 E Central St, Richmond, KS 66080 |
| Wellsville Post Office | 422 Main St, Wellsville, KS 66092 |
| Williamsburg Post Office | 100 W William St, Williamsburg, KS 66095 |