Champapur Gonauli BO is the primary post office registered under PIN code 845107 in Pashchim Champaran, Bihar. This code sits within the Eastern Postal Region, with 4 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Champapur Gonauli BO | BO | Branch Post Office |
| Laxmipur Bherihari BO | BO | Branch Post Office |
| Rampurwa BO | BO | Branch Post Office |
| Valmiki Nagar SO | SO | Sub Post Office |
