Pincode 691001 is a 6-digit postal code serving 4 post offices in Kollam district, Kerala. Kollam HO is the Head Post Office for this area, located at 8.8900°N, 76.5900°E. The first digit ‘6’ identifies the Kerala postal region; the full code pinpoints the Kollam delivery zone.
| Post Office | Type |
|---|---|
| Kollam HO | Head Post Office |
| Kollam Bazar SO | Post Office |
| Kollam Cantonment SO | Post Office |
| Kollam Taluk Cutchery SO | Post Office |
Data sourced from India Post, Department of Posts, Government of India. Data last verified: May 2026.
Kollam, Kerala. Map data: OpenStreetMap, CARTO.