| Area | Postcode | Post Office | State Code | State Name |
|---|---|---|---|---|
| Batu Niah | 98200 | Niah | SRW | Sarawak |
| Kampung Dagang | 98200 | Niah | SRW | Sarawak |
| Kampung Masjid | 98200 | Niah | SRW | Sarawak |
| Kampung Sepupok | 98200 | Niah | SRW | Sarawak |
| Niah | 98200 | Niah | SRW | Sarawak |
| Rumah Sawing | 98200 | Niah | SRW | Sarawak |
| Sungai Sekerat | 98200 | Niah | SRW | Sarawak |