There are 7 post offices under PIN code 609309.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Arupathy B.O | Branch Office | Delivery | Tharangambadi | Nagapattinam | Mayiladuthurai | Tiruchy | Tamil Nadu | Tamilnadu |
| 2 | Kalahasthinapuram B.O | Branch Office | Delivery | Tharangambadi | Nagapattinam | Mayiladuthurai | Tiruchy | Tamil Nadu | Tamilnadu |
| 3 | Memathur B.O | Branch Office | Delivery | Tharangambadi | Nagapattinam | Mayiladuthurai | Tiruchy | Tamil Nadu | Tamilnadu |
| 4 | Mudikondanallur B.O | Branch Office | Delivery | Tharangambadi | Nagapattinam | Mayiladuthurai | Tiruchy | Tamil Nadu | Tamilnadu |
| 5 | Parasalur B.O | Branch Office | Delivery | Tharangambadi | Nagapattinam | Mayiladuthurai | Tiruchy | Tamil Nadu | Tamilnadu |
| 6 | Sembanarkoil S.O | Sub Office | Delivery | Tharangambadi | Nagapattinam | Mayiladuthurai | Tiruchy | Tamil Nadu | Tamilnadu |
| 7 | Tiruchempalli B.O | Branch Office | Delivery | Tharangambadi | Nagapattinam | Mayiladuthurai | Tiruchy | Tamil Nadu | Tamilnadu |