Pincode 685588 is a 6-digit postal code serving 9 post offices in Idukki district, Kerala. Kalayanthani SO is the Post Office for this area, located at 9.8730°N, 76.7781°E. The first digit ‘6’ identifies the Kerala postal region; the full code pinpoints the Idukki delivery zone.
| Post Office | Type |
|---|---|
| Kalayanthani SO | Post Office |
| Alakode BO | Branch Post Office |
| Chilavu BO | Branch Post Office |
| Devarupara BO | Branch Post Office |
| Edavetty BO | Branch Post Office |
| Elamdesom BO | Branch Post Office |
| Koovakandam BO | Branch Post Office |
| Pannimattom BO | Branch Post Office |
| Velliyamattom BO | Branch Post Office |
Data sourced from India Post, Department of Posts, Government of India. Data last verified: May 2026.
Idukki, Kerala. Map data: OpenStreetMap, CARTO.