evidence: Borneo is the world's third-largest island and the largest island of Asia. It is part of the Indonesian archipelago. Borneo is surrounded by the Java Sea to its south, the Celebes Sea on its east, and the South China Sea to its north. It has an area of 288,869 square miles (748,168 square kilometers). From neighboring islands, Borneo is north of Java, west of Sulawesi, and east of Sumatra. The island is bisected by the equator, with approximately half of its land area in the northern hemisphere and half in the southern hemisphere. The island is divided between three countries: Indonesia (73%), Malaysia (26%), and Brunei (1%). The Indonesian provinces of North Kalimantan, South Kalimantan, East Kalimantan, West Kalimantan, and Central Kalimantan make up the southeastern part of the island. The Malaysian states of Sabah and Sarawak make up the northwestern part of the island. Brunei is a sovereign state located almost entirely on Borneo. It consists of two coastal tracts within the Malaysian state of Sarawak, and also includes several small adjacent islands.