There are 3 post offices under PIN code 636404.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Andikarai B.O | Branch Office | Delivery | Mettur | Salem | Salem West | Coimbatore | Tamil Nadu | Tamilnadu |
| 2 | Gonur S.O | Sub Office | Delivery | Mettur | Salem | Salem West | Coimbatore | Tamil Nadu | Tamilnadu |
| 3 | Karuppureddiyur B.O | Branch Office | Delivery | Mettur | Salem | Salem West | Coimbatore | Tamil Nadu | Tamilnadu |