page_title: Indonesia
section_title: Geography
hierarchical_section_title: Indonesia / Geography
caption_attribution_description: Mts. Bromo-Semeru-Batok-Widodaren, Tengger Caldera, East Java
context_page_description: Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania, between the Indian and Pacific oceans. It consists of more than seventeen thousand islands, including Sumatra, Java, Borneo, Sulawesi, and New Guinea. Indonesia is the world's largest island country and the 14th-largest country by land area, at 1,904,569 square kilometres. With over 267 million people, it is the world's 4th-most-populous country as well as the most-populous Muslim-majority country. Java, the world's most-populous island, is home to more than half of the country's population.
  The sovereign state is a presidential, constitutional republic with an elected legislature. It has 34 provinces, of which five have special status. The country's capital, Jakarta, is the second-most populous urban area in the world. The country shares land borders with Papua New Guinea, East Timor, and the eastern part of Malaysia. Other neighbouring countries include Singapore, Vietnam, the Philippines, Australia, Palau, and India's Andaman and Nicobar Islands.
context_section_description: Indonesia lies between latitudes 11°S and 6°N, and longitudes 95°E and 141°E. It is the largest archipelagic country in the world, extending 5,120 kilometres (3,181 mi) from east to west and 1,760 kilometres (1,094 mi) from north to south. According to the country's Coordinating Ministry for Maritime and Investments Affairs, Indonesia has 17,504 islands (16,056 of which are registered at the UN), scattered over both sides of the equator, around 6,000 of which are inhabited. The largest are Java, Sumatra, Borneo (shared with Brunei and Malaysia), Sulawesi, and New Guinea (shared with Papua New Guinea). Indonesia shares land borders with Malaysia on Borneo and Sebatik, Papua New Guinea on the island of New Guinea, and East Timor on the island of Timor, and maritime borders with Singapore, Malaysia, Vietnam, the Philippines, Palau, and Australia.
  At 4,884 metres (16,024 ft), Puncak Jaya is Indonesia's highest peak, and Lake Toba in Sumatra is the largest lake, with an area of 1,145 km2 (442 sq mi). Indonesia's largest rivers are in Kalimantan and New Guinea and include Kapuas, Barito, Mamberamo, Sepik and Mahakam. They serve as communication and transport links between the island's river settlements.
caption: Mount Semeru and Mount Bromo in East Java. Indonesia's seismic and volcanic activity is among the world's highest.
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