| Place | Post Code |
|---|---|
| Bhakti/bakti Idaman, Mendahara | 36764 |
| Bhakti Idaman, Mendahara | 36765 |
| Lagan Ilir, Mendahara | 36765 |
| Mendahara Ilir, Mendahara | 36765 |
| Mendahara Tengah, Mendahara | 36765 |
| Merbau, Mendahara | 36765 |
| Pangkal Duri, Mendahara | 36765 |
| Pangkal Duri Ilir, Mendahara | 36765 |
| Pangkalan/pangkal Duri, Mendahara | 36764 |
| Sinar Kalimantan, Mendahara | 36765 |
| Sungai Tawar, Mendahara | 36765 |