| Place | Postal Code |
|---|---|
| Apeú, Castanhal | 68747-000 |
| Castanhal, Castanhal | 68740, 68741, 68742, 68743, 68744, 68745, 68746 |
| Santa Terezinha, Castanhal | 68747-500 |
| Postal Codes in Castanhal | |
|---|---|
| Bujaru, Castanhal | |
| Castanhal, Castanhal | |
| Inhangapi, Castanhal | |
| Santa Isabel do Pará, Castanhal | |
| Santo Antônio do Tauá, Castanhal | |