| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Amatari, Itacoatiara | 69110-000 |
| Postal/ZIP Codes in Itacoatiara, Itacoatiara | 69100, 69101, 69103, 69104, 69109 |
| Postal/ZIP Codes in Novo Remanso, Itacoatiara | 69112-000 |
| Postal/ZIP Codes in Vila Lindóia, Itacoatiara | 69113-800 |