Post offices and branch post offices present in Arwal district of Bihar state. There are 13 Post Offices located in the district. List of Pin code of all the places in Arwal is listed below.
| Post Office | Taluk | District | PIN Code |
|---|---|---|---|
| Akbarpur B.O | Arwal | Arwal | 804401 |
| Anurahi B.O | Kaler | Arwal | 824115 |
| Arwal S.O | Arwal | Arwal | 804401 |
| Bara Koriun B.O | Arwal | Arwal | 804401 |
| Bhadasi B.O | Arwal | Arwal | 804401 |
| Fatehpur Sanda B.O | Arwal | Arwal | 804402 |
| Hasanpur B.O | Arwal | Arwal | 804402 |
| Keyal B.O | Karpi | Arwal | 804419 |
| Kodra B.O | Arwal | Arwal | 804401 |
| Kurtha Bazar B.O | Kurtha | Arwal | 804427 |
| Makhdumabad B.O | Arwal | Arwal | 804402 |
| Prasadi English B.O | Arwal | Arwal | 804401 |
| Sohasa B.O | Kaler | Arwal | 824127 |