The federal constituency was created in the 1968 redistribution and is mandated to return a single member to the Dewan Rakyat under the first past the post voting system.

Spanning an area of over 34,000 km2, almost the size of the state of Pahang, Hulu Rajang is the largest parliamentary constituency in Malaysia.

Consequently it also has the lowest population density, with only 1 person per sq km.

[3] constituency "His Majesty's Government Gazette - Notice of Contested Election, Parliament for the State of Sarawak [P.U.

[permanent dead link‍] "Federal Government Gazette - Notice of Contested Election, Parliament for the State of Sarawak [P.U.