page_title: Sumatra
section_title: Religion
hierarchical_section_title: Sumatra / Demographics / Religion
caption_attribution_description: English: Banda Aceh Grand MosqueEspañol: Gran Mezquita de Banda Aceh
context_page_description: 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 km², not including adjacent islands such as the Mentawai Islands, Enggano Island, Nias Island, Simeulue Island, Riau Islands, Bangka Belitung Islands and Krakatoa archipelago.
  Sumatra is an elongated landmass spanning a diagonal northwest-southeast axis. The Indian Ocean borders the west, northwest, and southwest coasts of Sumatra, with the island chain of Simeulue, Nias, Mentawai, and Enggano off the western coast. In the northeast, the narrow Strait of Malacca separates the island from the Malay Peninsula, which is an extension of the Eurasian continent. In the southeast, the narrow Sunda Strait, containing the Krakatoa Archipelago, separates Sumatra from Java. The northern tip of Sumatra borders the Andaman Islands, while off the southeastern coast lie the islands of Bangka and Belitung, Karimata Strait and the Java Sea.
context_section_description: The majority of people in Sumatra are Muslims (87.1%), while 10.7% are Christians, and less than 2% are Buddhists and Hindus.
caption: Baiturrahman Grand Mosque in Banda Aceh
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