Pincode 691309 is a 6-digit postal code serving 6 post offices in Kollam district, Kerala. Kalthuruthy SO is the Post Office for this area, located at 8.8100°N, 77.6000°E. The first digit ‘6’ identifies the Kerala postal region; the full code pinpoints the Kollam delivery zone.
| Post Office | Type |
|---|---|
| Kalthuruthy SO | Post Office |
| Ambanad BO | Branch Post Office |
| Aryankavu BO | Branch Post Office |
| Edapalayam BO | Branch Post Office |
| Rosemala BO | Branch Post Office |
| Venture BO | Branch Post Office |
Data sourced from India Post, Department of Posts, Government of India. Data last verified: May 2026.
Kollam, Kerala. Map data: OpenStreetMap, CARTO.