There are 4 post offices under PIN code 629180.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Kumaracoil B.O | Branch Office | Delivery | Kalkulam | Kanyakumari | Kanniyakumari | Madurai | Tamil Nadu | Tamilnadu |
| 2 | Madathattuvilai B.O | Branch Office | Non-Delivery | Kalkulam | Kanyakumari | Kanniyakumari | Madurai | Tamil Nadu | Tamilnadu |
| 3 | Manakarai B.O | Branch Office | Delivery | Kalkulam | Kanyakumari | Kanniyakumari | Madurai | Tamil Nadu | Tamilnadu |
| 4 | Villukuri S.O | Sub Office | Delivery | Kalkulam | Kanyakumari | Kanniyakumari | Madurai | Tamil Nadu | Tamilnadu |