| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Hornbeak, Obion | 38232 |
| Postal/ZIP Codes in Obion, Obion | 38240 |
| Postal/ZIP Codes in Rives, Obion | 38253 |
| Postal/ZIP Codes in Samburg, Obion | 38254 |
| Postal/ZIP Codes in South Fulton, Obion | 38257 |
| Postal/ZIP Codes in Troy, Obion | 38260 |
| Postal/ZIP Codes in Union City, Obion | 38261 |
| Postal/ZIP Codes in Woodland Mills, Obion | 38271 |