There are 7 post offices under PIN code 605801.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Ariyalur (Villupuram) S.O | Sub Office | Delivery | Tirukkoyilur | Villupuram | Vriddhachalam | Tiruchy | Tamil Nadu | Tamilnadu |
| 2 | Endal B.O | Branch Office | Delivery | Tirukkoyilur | Villupuram | Vriddhachalam | Tiruchy | Tamil Nadu | Tamilnadu |
| 3 | Kaduvanur B.O | Branch Office | Delivery | Tirukkoyilur | Villupuram | Vriddhachalam | Tiruchy | Tamil Nadu | Tamilnadu |
| 4 | Maiyanur B.O | Branch Office | Delivery | Tirukkoyilur | Villupuram | Vriddhachalam | Tiruchy | Tamil Nadu | Tamilnadu |
| 5 | Pakkam B.O | Branch Office | Delivery | Tirukkoyilur | Villupuram | Vriddhachalam | Tiruchy | Tamil Nadu | Tamilnadu |
| 6 | Periyakolliyur B.O | Branch Office | Delivery | Tirukkoyilur | Villupuram | Vriddhachalam | Tiruchy | Tamil Nadu | Tamilnadu |
| 7 | Tholuvanthangal B.O | Branch Office | Delivery | Tirukkoyilur | Villupuram | Vriddhachalam | Tiruchy | Tamil Nadu | Tamilnadu |