| At 1,919,440 square kilometers, Indonesia is the world's 16th-largest country in terms of land area. Its average population density is 134 people per square kilometer, 79th in the world, although Java, the world's most populous island , [63] has a population density of 940 people per square kilometer (2,435 per sq mi). At 4,884 meters (16,024 ft), Puncak Jaya in Papua is Indonesia's highest peak, and Lake Toba in Sumatra its largest lake, with an area of 1,145 square kilometers (442 sq mi). The country's largest rivers are in Kalimantan, and include the Mahakam and Barito; such rivers are communication and transport links between the island's river settlements. |