8 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 38261 | Union City | 16,385 |
| 38257 | South Fulton | 4,437 |
| 38260 | Troy | 3,720 |
| 38232 | Hornbeak | 2,238 |
| 38240 | Obion | 1,620 |
| 38253 | Rives | 917 |
| 38259 | Trimble | 672 |
| 38254 | Samburg | 0 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 8 ZCTAs in Obion County, Tennessee (US Census).