There are 7 post offices under PIN code 604505.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Ayalpadi B.O | Branch Office | Delivery | Vandavasi | Tiruvannamalai | Tiruvannamalai | Chennai Region | Tamil Nadu | Tamilnadu |
| 2 | Melnemili B.O | Branch Office | Delivery | Vandavasi | Tiruvannamalai | Tiruvannamalai | Chennai Region | Tamil Nadu | Tamilnadu |
| 3 | Melpathi B.O | Branch Office | Delivery | Vandavasi | Tiruvannamalai | Tiruvannamalai | Chennai Region | Tamil Nadu | Tamilnadu |
| 4 | Nambedu B.O | Branch Office | Delivery | Vandavasi | Tiruvannamalai | Tiruvannamalai | Chennai Region | Tamil Nadu | Tamilnadu |
| 5 | Sengadu B.O | Branch Office | Delivery | Vandavasi | Tiruvannamalai | Tiruvannamalai | Chennai Region | Tamil Nadu | Tamilnadu |
| 6 | Vadavanakkambadi B.O | Branch Office | Delivery | Vandavasi | Tiruvannamalai | Tiruvannamalai | Chennai Region | Tamil Nadu | Tamilnadu |
| 7 | Vallam Arni S.O | Sub Office | Delivery | Vandavasi | Vellore | Tiruvannamalai | Chennai Region | Tamil Nadu | Tamilnadu |