In Palakkad district, Kerala, PIN code 678557 is anchored by Velanthavalam BO, a Branch Post Office. Mail addressed to this code is sorted through the Southern Postal Region, across 3 listed offices.
| Post office | Type | Full name |
|---|---|---|
| Velanthavalam BO | BO | Branch Post Office |
| Olalapadi BO | BO | Branch Post Office |
| Kozhipara SO | SO | Sub Post Office |
