There are 3 post offices under PIN code 602001.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Nggo Colony Tiruvallur S.O | Sub Office | Non-Delivery | Thiruvallur | Tiruvallur | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |
| 2 | Tiruvallur H.O | Head Office | Delivery | Tiruvallur | Tiruvallur | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |
| 3 | Tiruvallur Nethaji Road S.O | Sub Office | Non-Delivery | Thiruvallur | Tiruvallur | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |