| Lokasi | Kode Pos |
|---|---|
| Riau, Indragiri Hulu, Rengat, Rantau Mapesai | 29319 |
| Riau, Indragiri Hulu, Rengat, Rawa Bangun | 29319 |
| Riau, Indragiri Hulu, Rengat, Sei/Sungai Guntung Hilir | 29319 |
| Riau, Indragiri Hulu, Rengat, Sei/Sungai Guntung Tengah | 29319 |
| Riau, Indragiri Hulu, Rengat, Sekip Hulu | 29319 |
| Riau, Indragiri Hulu, Rengat, Sungai Raya | 29319 |