There are 12 post offices under PIN code 602105.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Gunduperumbedu B.O | Branch Office | Delivery | Sriperumbudur | Kanchipuram | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |
| 2 | Mathur B.O | Branch Office | Delivery | Sriperumbudur | Kanchipuram | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |
| 3 | Pattunoolchatram S.O | Sub Office | Non-Delivery | Na | Kanchipuram | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |
| 4 | Pennalur B.O | Branch Office | Delivery | Sriperumbudur | Kanchipuram | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |
| 5 | Pillaipakkam B.O | Branch Office | Delivery | Sriperumbudur | Kanchipuram | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |
| 6 | Pondur B.O | Branch Office | Delivery | Sriperumbudur | Kanchipuram | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |
| 7 | Sriperumbudur S.O | Sub Office | Delivery | Sriperumbudur | Kanchipuram | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |
| 8 | Thandalam B.O | Branch Office | Delivery | Sriperumbudur | Kanchipuram | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |
| 9 | Thodukadu B.O | Branch Office | Delivery | Thiruvallur | Tiruvallur | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |
| 10 | Ulundai B.O | Branch Office | Delivery | Thiruvallur | Tiruvallur | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |
| 11 | Valarpuram B.O | Branch Office | Delivery | Sriperumbudur | Kanchipuram | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |
| 12 | Vayalur B.O | Branch Office | Delivery | Sriperumbudur | Kanchipuram | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |