In Idukki district, Kerala, PIN code 685511 is anchored by Nariampara BO, a Branch Post Office. Mail addressed to this code is sorted through the Southern Postal Region, across 5 listed offices.
| Post office | Type | Full name |
|---|---|---|
| Nariampara BO | BO | Branch Post Office |
| Thoppipala BO | BO | Branch Post Office |
| Kozhimala BO | BO | Branch Post Office |
| Thovarayar BO | BO | Branch Post Office |
| Kanchiyar SO | SO | Sub Post Office |
