There are 10 post offices under PIN code 636602.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Asambur B.O | Branch Office | Delivery | Yercaud | Salem | Salem East | Coimbatore | Tamil Nadu | Tamilnadu |
| 2 | Cauvery Peak B.O | Branch Office | Delivery | Yercaud | Salem | Salem East | Coimbatore | Tamil Nadu | Tamilnadu |
| 3 | Karadiyur B.O | Branch Office | Delivery | Yercaud | Salem | Salem East | Coimbatore | Tamil Nadu | Tamilnadu |
| 4 | Manjakuttai B.O | Branch Office | Delivery | Yercaud | Salem | Salem East | Coimbatore | Tamil Nadu | Tamilnadu |
| 5 | Muluvi B.O | Branch Office | Delivery | Yercaud | Salem | Salem East | Coimbatore | Tamil Nadu | Tamilnadu |
| 6 | Nagalur B.O | Branch Office | Delivery | Yercaud | Salem | Salem East | Coimbatore | Tamil Nadu | Tamilnadu |
| 7 | Ondikadai S.O | Sub Office | Delivery | Yercaud | Salem | Salem East | Coimbatore | Tamil Nadu | Tamilnadu |
| 8 | Piliyur B.O | Branch Office | Delivery | Yercaud | Salem | Salem East | Coimbatore | Tamil Nadu | Tamilnadu |
| 9 | Semmanatham B.O | Branch Office | Delivery | Yercaud | Salem | Salem East | Coimbatore | Tamil Nadu | Tamilnadu |
| 10 | Vellakadai B.O | Branch Office | Delivery | Yercaud | Salem | Salem East | Coimbatore | Tamil Nadu | Tamilnadu |