| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Altamira, Altamira | 68371, 68372, 68373, 68374, 68375, 68376, 68377, 68378 |
| Postal/ZIP Codes in Cachoeira da Serra, Altamira | 68379-500 |
| Postal/ZIP Codes in Castelo dos Sonhos, Altamira | 68379-200 |
| Postal/ZIP Codes in Iataí, Altamira | 68379-100 |