Post Offices List in Smith County, Kansas:
| Cedar Post Office | 100 Main St, Cedar, KS 67628 |
| Gaylord Post Office | 600 5th St, Gaylord, KS 67638 |
| Kensington Post Office | 201 S Main St, Kensington, KS 66951 |
| Lebanon Post Office | 416 Main St, Lebanon, KS 66952 |
| Smith Center Post Office | 119 E Court St, Smith Center, KS 66967 |