Oonnakavu BO is the primary post office registered under PIN code 689674 in Pathanamthitta, Kerala. This code sits within the Southern Postal Region, with 4 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Oonnakavu BO | BO | Branch Post Office |
| Pulloopram BO | BO | Branch Post Office |
| Nellikkamon BO | BO | Branch Post Office |
| Angadi SO Pathanamthitta | OTHER | post office |
