In Villupuram district, Tamil Nadu, PIN code 604205 is anchored by Kappai BO, a Branch Post Office. Mail addressed to this code is sorted through the Southern Postal Region, across 9 listed offices.
| Post office | Type | Full name |
|---|---|---|
| Kappai BO | BO | Branch Post Office |
| Minambur SO | SO | Sub Post Office |
| Kurinjipai BO | BO | Branch Post Office |
| Thaiyur BO | BO | Branch Post Office |
| Thiruvathikunnam BO | BO | Branch Post Office |
| Konai BO | BO | Branch Post Office |
| Palapattu BO | BO | Branch Post Office |
| Thiruvampattu BO | BO | Branch Post Office |
| Thalavanur BO | BO | Branch Post Office |
