River Basins in Sarawak (Borneo)

Map of Sarawak River Basins

Sarawak State is part of Borneo island and has been divided into 21 river basins, as follows:

1. Kayan, 1,645 km2


2. Sg. Sarawak, 2,375 km2


3. Samarahan, 1,090 km2


4. Sadong, 3,550 km2


5. Lupar, 6,510 km2


6. Saribas, 2,200 km2


7. Krian, 1,500 km2


8. Lower and Upper Rajang, 47,880 km2


9. Oya, 2,195 km2


10. Mukah, 2,275 km2


11. Balingian, 2,510 km2


12. Tatau, 5,260 km2


13. Kemena, 6,100 km2


14. Similajau, 660 km2


15. Suai, 1,540 km2


16. Niah, 1,280 km2


17. Sibuti, 1,020 km2


18. Baram, 22,930 km2


19. Limbang, 3,950 km2


20. Trusan, 2,615 km2


21. Lawas, 1,050 km2.

for more information please visit https://did.sarawak.gov.my/web/subpage/webpage_view/315