9 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 37030 | Carthage | 7,889 |
| 37145 | Pleasant Shade | 2,418 |
| 38563 | Gordonsville | 2,271 |
| 38547 | Brush Creek | 1,856 |
| 38560 | Elmwood | 1,639 |
| 38567 | Hickman | 1,035 |
| 37151 | Riddleton | 467 |
| 38569 | Lancaster | 316 |
| 38552 | Chestnut Mound | 286 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 9 ZCTAs in Smith County, Tennessee (US Census).