Poruvazhy SO is the primary post office registered under PIN code 690520 in Kollam, Kerala. This code sits within the Southern Postal Region, with 4 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Poruvazhy SO | SO | Sub Post Office |
| Ambalathumbhagom BO | BO | Branch Post Office |
| Chathakulam BO | BO | Branch Post Office |
| Muthupilakkad BO | BO | Branch Post Office |
