Borneo is the third-largest island in the world and the largest in Asia. At the geographic centre of Maritime Southeast Asia, in relation to major Indonesian islands, it is located north of Java, west of Sulawesi, and east of Sumatra.
The island is politically divided among three countries: Malaysia and Brunei in the north, and Indonesia to the south. Approximately 73% of the island is Indonesian territory.
In the north, the East Malaysian states of Sabah and Sarawak make up about 26% of the island. Additionally, the Malaysian federal territory of Labuan is situated on a small island just off the coast of Borneo.
The sovereign state of Brunei, located on the north coast, comprises about 1% of Borneo’s land area.
Antipodal to an area of Amazon rainforest, Borneo is itself home to one of the oldest rainforests in the world.
Sarawak is a state of Malaysia. Being the largest among 13 other states with the size almost equal to West Malaysia, Sarawak is located in northwest Borneo Island. It is bordered by the Malaysian state of Sabah to the northeast, Kalimantan, the Indonesian portion of Borneo, to the south and the independent country of Brunei in the north.
The capital city, Kuching, is the economic centre of the state and seat of the Sarawak state government. Other cities and towns in Sarawak include Miri, Sibu, and Bintulu. As of the 2015 census, the population of Sarawak was 2,636,000.
Sarawak has an equatorial climate with tropical rainforests and abundant animal and plant species. It has several prominent cave systems at Gunung Mulu National Park. Rajang River is the longest river in Malaysia; Bakun Dam, one of the largest dams in Southeast Asia, is located on one of its tributaries, the Balui River. Mount Murud is the highest point in Sarawak.
Sabah is a state of Malaysia located on the northern portion of Borneo Island. Sabah has land borders with the Malaysian state of Sarawak to the southwest, and Indonesia’s Kalimantan region to the south. The Federal Territory of Labuan is an island just off the Sabah coast. Sabah shares maritime borders with Vietnam in the west and the Philippines to the north and east.
Kota Kinabalu is the capital city, the economic centre of the state and the seat of the Sabah state government. Other major towns in Sabah include Sandakan and Tawau. As of the 2015 census in Malaysia, the state’s population is 3,543,500.
Sabah has an equatorial climate with tropical rainforests and abundant animal and plant species. The state has long mountain ranges on the west side which form part of the Crocker Range National Park. Kinabatangan River, second longest river in Malaysia runs through Sabah and Mount Kinabalu is the highest point of Sabah as well as of Malaysia.