What is the Largest Island in the Pacific Ocean?

Caitlin Dempsey

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Map showing the location of New Guinea. Map: Equal Earth Physical Map, public domain.

Pacific islands are islands located in the Pacific Ocean, the largest and deepest of Earth’s ocean basins. There are about 25,000 islands found in the Pacific Ocean. This number contains both high islands (islands that extend above sea level and generally contain flora and fauna) and low islands (islands of coral origin) (United States, 2009).

Of all the islands in this ocean, not counting Australia which is a continent, the largest island in the Pacific Ocean is New Guinea.

Found wholly in the Southern Hemisphere slightly north of Australia, New Guinea has a  land area of 785,753 km2 (303,381 sq mi).

The western half of New Guinea is part of Indonesia and is known as Western New Guinea or West Papua. The eastern half of New Guinea is the independent state of Papua New Guinea.  New Guinea is part of the Melanesia subregion of Oceania.

New Guinea is the second largest island in the world, after Greenland.





Map showing the location of New Guinea.  Map: Equal Earth Physical Map, public domain.
Map showing the location of New Guinea. Map: Equal Earth Physical Map, public domain.

References

United States. National Oceanic and Atmospheric Administration. (2009). Toward an Ecosystem Approach for the Western Pacific Region: From Species-based Fishery Management Plans to Place-based Fishery Ecosystem Plans: Environmental Impact Statementhttps://books.google.com/books?id=3Tw3AQAAMAAJ

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Caitlin Dempsey

Caitlin Dempsey is a geographer, writer, and founder and editor of Geography Realm. She holds bachelor's and master's degrees in Geography from UCLA and a Master of Library and Information Science (MLIS) from San José State University.

For more than two decades, she has written about geography, maps, geographic information systems (GIS), remote sensing, satellite imagery, and environmental science. Her work focuses on making geography accessible to a broad audience through articles, tutorials, and educational resources.

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