The country is home to a staggering 18,000 different islands. The islands of the Indian Ocean are not as large as those of the Pacific, but they are equally popular. The most well known islands like Java, Sumatra and Borneo are among the biggest in the world, but the smaller ones are also well worth a … The majority of the islands are forested and mountainous. Large islands shared by Indonesia and other countries. Some of its islands share terrestrial borders with other countries including East Timor, Malaysia, and Papua New Guinea. The Maluku Islands have a total area of 850,000 km 2, 90% of which is sea. Samarinda is the largest city on Borneo (in Indonesia) with a population of 726, 223. Area. Manitoulin, Lake Huron - (1,068 sq miles) (2,766 sq km) Vozrozhdeniya, Aral Sea - (888 sq miles) (2,300 sq km) Rene-Lavasseur, Manicouagan Reservoir, Quebec, Canada - … The island is located entirely in Indonesia and sixth largest in the world, and Medan is the largest city, Kerinci is the highest point. The largest two islands, Halmahera and Seram are sparsely populated, while the most developed, Ambon and Ternate are small. This is a list of the most populous islands in Indonesia, sorted from the highest to lowest.This list also includes the respective islands' population density as well as their most populous settlements (all of its population statistics are taken from 2014 data, unless noted as otherwise) and comparisons with other countries and territories. Island. The islands of Indonesia, also known as the Indonesian Archipelago, may refer either to the islands comprising the nation-state of Indonesia or to the geographical groups which include its islands. The Indian Ocean borders Australia on the east, Africa on the west, Asia on the north, and Antarctica on the south. Sumatra is one of the Sunda Islands of western Indonesia.It is the largest island that is fully within Indonesian territory, as well as the sixth-largest island in the world at 473,481 km 2 (182,812 mi. 2), not including adjacent islands such as the Simeulue, Nias, Mentawai, Enggano, Riau Islands, Bangka Belitung and Krakatoa archipelago. New Guinea, Papua New Guinea - Indonesia. It accounts for 20% of the earth's surface water. There are an estimated 1027 islands. The climate is hot and tropical, the rainforest with great landscapes place for thousands of species of flora and fauna. Within Indonesia, only Sumatra, Borneo and Papua are larger in territory, and only Java and Sumatra have larger populations. Sq miles. LARGEST LAKE ISLANDS. The world's eleventh-largest island, it is situated east of Borneo, west of the Maluku Islands, and south of Mindanao and the Sulu Archipelago. The territory of Indonesia stretches over 1,000 miles from north to south and over more than 3,100 miles from east to west, making it the largest archipelago in the world. 309,000 Between the Indian and Pacific Oceans, and directly over the Equator, is the nation of Indonesia. The Indian Ocean is the third largest of the world's oceans with an area of about 27,240,000 square miles. The island actually houses three countries, part of Indonesia (about 3 quarters of the island), Malaysia (1 quarter) and Brunei occupying 0nly about 1%. Sq km . Halmahera, Indonesia - (6,965 sq miles) (18,040 sq km) Source: UNEP island database. Great landscapes place for thousands of species of flora and fauna UNEP island database Papua New Guinea it accounts 20! Population of 726, 223 Australia on the north, and directly over Equator. 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