There are 14 post offices under PIN code 638657.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Alangiam B.O | Branch Office | Delivery | Dharapuram | Erode | Tirupur | Coimbatore | Tamil Nadu | Tamilnadu |
| 2 | Chinnaickampalayam B.O | Branch Office | Delivery | Dharapuram | Erode | Tirupur | Coimbatore | Tamil Nadu | Tamilnadu |
| 3 | Chinnaputhur B.O | Branch Office | Delivery | Dharapuram | Erode | Tirupur | Coimbatore | Tamil Nadu | Tamilnadu |
| 4 | Chitravuthampalayam B.O | Branch Office | Delivery | Dharapuram | Erode | Tirupur | Coimbatore | Tamil Nadu | Tamilnadu |
| 5 | Dasarapatti B.O | Branch Office | Delivery | Dharapuram | Erode | Tirupur | Coimbatore | Tamil Nadu | Tamilnadu |
| 6 | Ellisnagar S.O | Sub Office | Delivery | Dharapuram | Erode | Tirupur | Coimbatore | Tamil Nadu | Tamilnadu |
| 7 | Gethalrev B.O | Branch Office | Delivery | Dharapuram | Erode | Tirupur | Coimbatore | Tamil Nadu | Tamilnadu |
| 8 | Govindapuram B.O | Branch Office | Delivery | Dharapuram | Erode | Tirupur | Coimbatore | Tamil Nadu | Tamilnadu |
| 9 | Kallivalasu B.O | Branch Office | Delivery | Dharapuram | Erode | Tirupur | Coimbatore | Tamil Nadu | Tamilnadu |
| 10 | Kullaipalayam B.O | Branch Office | Delivery | Dharapuram | Erode | Tirupur | Coimbatore | Tamil Nadu | Tamilnadu |
| 11 | Nanjiampalayam B.O | Branch Office | Delivery | Dharapuram | Erode | Tirupur | Coimbatore | Tamil Nadu | Tamilnadu |
| 12 | Nanjundapuram B.O | Branch Office | Delivery | Dharapuram | Erode | Tirupur | Coimbatore | Tamil Nadu | Tamilnadu |
| 13 | Ponnapuram B.O | Branch Office | Delivery | Dharapuram | Erode | Tirupur | Coimbatore | Tamil Nadu | Tamilnadu |
| 14 | Thoppampatti B.O | Branch Office | Delivery | Dharapuram | Erode | Tirupur | Coimbatore | Tamil Nadu | Tamilnadu |