Kamalpur BO is the primary post office registered under PIN code 841405 in Gopalganj, Bihar. This code sits within the Eastern Postal Region, with 19 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Kamalpur BO | BO | Branch Post Office |
| Salempur BO | BO | Branch Post Office |
| Devapur BO | BO | Branch Post Office |
| Lohijara BO | BO | Branch Post Office |
| Nawada BO | BO | Branch Post Office |
| Rupanchhap BO | BO | Branch Post Office |
| Sareya Narendra BO | BO | Branch Post Office |
| Achhaibar Pipra BO | BO | Branch Post Office |
| Batardey BO | BO | Branch Post Office |
| Khajuri BO | BO | Branch Post Office |
| Sadauwan BO | BO | Branch Post Office |
| BASonbarsa BO | BO | Branch Post Office |
| Sikatiya Sridhar Sahi BO | BO | Branch Post Office |
| BRampur BO | BO | Branch Post Office |
| Hassanpur Mathiya BO | BO | Branch Post Office |
| Kahla BO | BO | Branch Post Office |
| MBiraicha BO | BO | Branch Post Office |
| Neori BO | BO | Branch Post Office |
| Barauli SO Gopalganj | OTHER | post office |
