| Place | Postal Code |
|---|---|
| Amboaniokely, Boeny) | 401 |
| Ambodimanga, Boeny) | 401 |
| Ambodipamba, Boeny) | 401 |
| Ambombolava, Boeny) | 401 |
| Antanambao Andolobe, Boeny) | 401 |
| Antanimbaribe, Boeny) | 401 |
| Fenoarivo Besakoa, Boeny) | 401 |
| Mahajamba Usine, Boeny) | 401 |
| Mahajambakely, Boeny) | 401 |
| Mangatoka, Boeny) | 401 |
| Tsarazazamandimby, Boeny) | 401 |
| Postal Codes in Mahajanga II | |
|---|---|
| Ambalabe Befanjava | |
| Ambalakida | |
| Andranoboka | |
| Bekobay | |
| Belobaka | |
| Betsako | |
| Boanamary | |
| Mahajamba Usine | |
| Mariarano | |