Chujachen BO is the primary post office registered under PIN code 737131 in Pakyong, Sikkim. This code sits within the Eastern Postal Region, with 9 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Chujachen BO | BO | Branch Post Office |
| Latuk BO | BO | Branch Post Office |
| Rangli Bazar SO | SO | Sub Post Office |
| Dalapchand BO | BO | Branch Post Office |
| North Regu BO | BO | Branch Post Office |
| South Regu BO | BO | Branch Post Office |
| Phadamchen BO | BO | Branch Post Office |
| Rolep BO | BO | Branch Post Office |
| Lingtam BO | BO | Branch Post Office |
