There are 15 post offices under PIN code 606401.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Arasampattu B.O | Branch Office | Delivery | Sankarapuram | Villupuram | Vriddhachalam | Tiruchy | Tamil Nadu | Tamilnadu |
| 2 | Kilakkadu B.O | Branch Office | Delivery | Sankarapuram | Villupuram | Vriddhachalam | Tiruchy | Tamil Nadu | Tamilnadu |
| 3 | Kosapadi B.O | Branch Office | Delivery | Sankarapuram | Villupuram | Vriddhachalam | Tiruchy | Tamil Nadu | Tamilnadu |
| 4 | Mottampatti B.O | Branch Office | Delivery | Sankarapuram | Villupuram | Vriddhachalam | Tiruchy | Tamil Nadu | Tamilnadu |
| 5 | Perumbur B.O | Branch Office | Delivery | Sankarapuram | Villupuram | Vriddhachalam | Tiruchy | Tamil Nadu | Tamilnadu |
| 6 | Pootai B.O | Branch Office | Delivery | Sankarapuram | Villupuram | Vriddhachalam | Tiruchy | Tamil Nadu | Tamilnadu |
| 7 | Poykunam B.O | Branch Office | Delivery | Sankarapuram | Villupuram | Vriddhachalam | Tiruchy | Tamil Nadu | Tamilnadu |
| 8 | Pudupalapattu B.O | Branch Office | Delivery | Sankarapuram | Villupuram | Vriddhachalam | Tiruchy | Tamil Nadu | Tamilnadu |
| 9 | Sankarapuram (Villupuram) S.O | Sub Office | Delivery | Sankarapuram | Villupuram | Vriddhachalam | Tiruchy | Tamil Nadu | Tamilnadu |
| 10 | Serapattu B.O | Branch Office | Delivery | Sankarapuram | Villupuram | Vriddhachalam | Tiruchy | Tamil Nadu | Tamilnadu |
| 11 | Soundaravallipalayam B.O | Branch Office | Delivery | Sankarapuram | Villupuram | Vriddhachalam | Tiruchy | Tamil Nadu | Tamilnadu |
| 12 | Thekkampattu B.O | Branch Office | Delivery | Sankarapuram | Villupuram | Vriddhachalam | Tiruchy | Tamil Nadu | Tamilnadu |
| 13 | Vanjikuli B.O | Branch Office | Delivery | Sankarapuram | Villupuram | Vriddhachalam | Tiruchy | Tamil Nadu | Tamilnadu |
| 14 | Vellarikadu B.O | Branch Office | Delivery | Sankarapuram | Villupuram | Vriddhachalam | Tiruchy | Tamil Nadu | Tamilnadu |
| 15 | Vengodu B.O | Branch Office | Delivery | Sankarapuram | Villupuram | Vriddhachalam | Tiruchy | Tamil Nadu | Tamilnadu |