There are 3 post offices under PIN code 609504.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Panangudi B.O | Branch Office | Delivery | Nannilam | Tiruvarur | Nagapattinam | Tiruchy | Tamil Nadu | Tamilnadu |
| 2 | Sannanallur S.O | Sub Office | Delivery | Nagapattinam | Nagapattinam | Nagapattinam | Tiruchy | Tamil Nadu | Tamilnadu |
| 3 | Thuthukudi B.O | Branch Office | Delivery | Nannilam | Tiruvarur | Nagapattinam | Tiruchy | Tamil Nadu | Tamilnadu |