Henderson Island


World Heritage Identification Number: 487

World Heritage since: 1988

Category: Natural Heritage

Transboundary Heritage: No

Endangered Heritage: No

Country: 🇬🇧 United Kingdom of Great Britain and Northern Ireland

Continent: Europe

UNESCO World Region: Europe and North America

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Henderson Island: A Remote Haven of Biodiversity

Henderson Island, a remote atoll in the eastern South Pacific, is one of the most pristine and unique ecosystems on Earth. This uninhabited island, measuring approximately 9.6 by 5.1 kilometers, forms part of the Pitcairn Island Group, along with Pitcairn, Oeno, and Ducie Islands. With an area of 37.3 square kilometers, Henderson Island lies 193 kilometers northeast of Pitcairn Island, the only inhabited island in the group.

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UNESCO Description of the World Heritage Site

Henderson Island, which lies in the eastern South Pacific, is one of the few atolls in the world whose ecology has been practically untouched by a human presence. Its isolated location provides the ideal context for studying the dynamics of insular evolution and natural selection. It is particularly notable for the 10 plants and four land birds that are endemic to the island.

Encyclopedia Record: Henderson Island (Pitcairn Islands)

Henderson Island is an uninhabited island in the south Pacific Ocean. It is part of the Pitcairn Island Group, together with Pitcairn, Oeno, and Ducie Islands. Measuring 9.6 by 5.1 kilometres, it has an area of 37.3 km2 (14.4 sq mi) and is located 193 km northeast of Pitcairn Island, which is the only inhabited island of the group. It has poor soil and little fresh water, and is unsuitable for agriculture. There are three beaches on the northern end and the remaining coast comprises steep cliffs up to 15 m (50 ft) in height. In 1902, it was annexed to the Pitcairn Islands colony, which is now a British Overseas Territory.

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Additional Site Details

Area: 3,700 hectares

UNESCO Criteria: (vii) — Contains superlative natural phenomena or beauty
(x) — Contains most important habitats for biodiversity

Coordinates: -24.3666666667 , -128.333333333

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Image of Henderson Island

© Makemake at German Wikipedia, CC BY-SA 3.0 Resized from original. (This derivative is under the same CC BY-SA license.)

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Country Information: United Kingdom of Great Britain and Northern Ireland

Flag of United Kingdom of Great Britain and Northern Ireland

Official Name: United Kingdom of Great Britain and Northern Ireland

Capital: London

Continent: Europe

Population (2024): 69,226,000

Population (2023): 68,492,000

Population (2022): 67,604,000

Land Area: 241,930 sq km

Currency: British pound (GBP)

Country Data Sources

Last updated: January 18, 2026

Portions of the page Henderson Island are based on data from UNESCO — World Heritage List Dataset and on text from the Wikipedia article Henderson Island (Pitcairn Islands), licensed under CC BY-SA 4.0. Changes made. Additional original content by World Heritage Explorer (WHE), licensed under CC BY-SA 4.0. WHE is not affiliated with UNESCO or the World Heritage Committee. Legal Notice. Privacy Policy.

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