| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Areré, Barreira | 62795-700 |
| Postal/ZIP Codes in Barreira, Barreira | 62795-000 |
| Postal/ZIP Codes in Cajueiro, Barreira | 62797-000 |
| Postal/ZIP Codes in Córrego, Barreira | 62796-000 |
| Postal/ZIP Codes in Lagoa do Barro, Barreira | 62798-000 |
| Postal/ZIP Codes in Lagoa Grande, Barreira | 62799-000 |