There are 12 post offices under PIN code 636601.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Keeraikadu B.O | Branch Office | Delivery | Yercaud | Salem | Salem East | Coimbatore | Tamil Nadu | Tamilnadu |
| 2 | Kombuthooki B.O | Branch Office | Delivery | Yercaud | Salem | Salem East | Coimbatore | Tamil Nadu | Tamilnadu |
| 3 | Kottaichedu B.O | Branch Office | Delivery | Yercaud | Salem | Salem East | Coimbatore | Tamil Nadu | Tamilnadu |
| 4 | Maramangalam B.O | Branch Office | Delivery | Yercaud | Salem | Salem East | Coimbatore | Tamil Nadu | Tamilnadu |
| 5 | Palakadu B.O | Branch Office | Delivery | Yercaud | Salem | Salem East | Coimbatore | Tamil Nadu | Tamilnadu |
| 6 | Pattipadi B.O | Branch Office | Delivery | Yercaud | Salem | Salem East | Coimbatore | Tamil Nadu | Tamilnadu |
| 7 | Puthur B.O | Branch Office | Delivery | Yercaud | Salem | Salem East | Coimbatore | Tamil Nadu | Tamilnadu |
| 8 | Sengadu B.O | Branch Office | Delivery | Yercaud | Salem | Salem East | Coimbatore | Tamil Nadu | Tamilnadu |
| 9 | Thalaisolai B.O | Branch Office | Delivery | Yercaud | Salem | Salem East | Coimbatore | Tamil Nadu | Tamilnadu |
| 10 | Vazhavandhi B.O | Branch Office | Delivery | Yercaud | Salem | Salem East | Coimbatore | Tamil Nadu | Tamilnadu |
| 11 | Velur B.O | Branch Office | Delivery | Yercaud | Salem | Salem East | Coimbatore | Tamil Nadu | Tamilnadu |
| 12 | Yercaud S.O | Sub Office | Delivery | Yercaud | Salem | Salem East | Coimbatore | Tamil Nadu | Tamilnadu |