In Idukki district, Kerala, PIN code 685589 is anchored by Edadidukki BO, a Branch Post Office. Mail addressed to this code is sorted through the Southern Postal Region, across 6 listed offices.
| Post office | Type | Full name |
|---|---|---|
| Edadidukki BO | BO | Branch Post Office |
| Ilappally BO | BO | Branch Post Office |
| Kannickal BO | BO | Branch Post Office |
| Pathippally BO | BO | Branch Post Office |
| Moolamattom SO | SO | Sub Post Office |
| Moolamattom East BO | BO | Branch Post Office |
