Pincode 631204 is a 6-digit postal code serving 9 post offices in Thiruvallur district, Tamil Nadu. Kanakammachatram S.O is the Post Office for this area, located at 13.2040°N, 79.7555°E. The first digit ‘6’ identifies the Tamil Nadu postal region; the full code pinpoints the Thiruvallur delivery zone.
| Post Office | Type |
|---|---|
| Kanakammachatram S.O | Post Office |
| Arcot B.O | Branch Post Office |
| Illuppur B.O | Branch Post Office |
| Kanchipadi B.O | Branch Post Office |
| Muthukondapuram B.O | Branch Post Office |
| Nabalur B.O | Branch Post Office |
| Nedambaram B.O | Branch Post Office |
| Ramanjeri B.O | Branch Post Office |
| Ramapuram B.O | Branch Post Office |
Data sourced from India Post, Department of Posts, Government of India. Data last verified: May 2026.
Thiruvallur, Tamil Nadu. Map data: OpenStreetMap, CARTO.