7 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 66967 | Smith Center | 1,913 |
| 66951 | Kensington | 920 |
| 66952 | Lebanon | 401 |
| 66932 | Athol | 162 |
| 67628 | Cedar | 126 |
| 67474 | Portis | 110 |
| 67638 | Gaylord | 70 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 7 ZCTAs in Smith County, Kansas (US Census).