There are 6 post offices under PIN code 630302.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Devakottai H.O | Head Office | Delivery | Devakottai | Sivaganga | Karaikudi | Madurai | Tamil Nadu | Tamilnadu |
| 2 | Devakottai Palace S.O | Sub Office | Non-Delivery | Devakottai | Sivaganga | Karaikudi | Madurai | Tamil Nadu | Tamilnadu |
| 3 | Devakottai South S.O | Sub Office | Non-Delivery | Devakottai | Sivaganga | Karaikudi | Madurai | Tamil Nadu | Tamilnadu |
| 4 | Devakottai West S.O | Sub Office | Non-Delivery | Devakottai | Sivaganga | Karaikudi | Madurai | Tamil Nadu | Tamilnadu |
| 5 | Karuthavoorani B.O | Branch Office | Non-Delivery | Devakottai | Sivaganga | Karaikudi | Madurai | Tamil Nadu | Tamilnadu |
| 6 | Silambani B.O | Branch Office | Non-Delivery | Devakottai | Sivaganga | Karaikudi | Madurai | Tamil Nadu | Tamilnadu |