There are 3 post offices under PIN code 609605.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Karaikalmedu B.O | Branch Office | Non-Delivery | Na | Karaikal | Nagapattinam | Tiruchy | Pondicherry | Tamilnadu |
| 2 | Karaikoilpathu B.O | Branch Office | Non-Delivery | Na | Karaikal | Nagapattinam | Tiruchy | Pondicherry | Tamilnadu |
| 3 | Thalatheru S.O | Sub Office | Delivery | Na | Karaikal | Nagapattinam | Tiruchy | Pondicherry | Tamilnadu |