World Context: Saint Helena, Ascension and Tristan da Cunha

Source and mapping status

This page maps the site registry entry “Saint Helena, Ascension and Tristan da Cunha” to the supplied dataset entity “Saint Helena, Ascension, and Tristan da Cunha.” Mapping status: alias-name. The source is a frozen 2025 snapshot; dates embedded in individual fields remain controlling.

• Source entity count: 1.
• Selected public fields present: 20.
• Independent corroboration in this page: none.

Place and environment

Location: islands in the South Atlantic Ocean, about midway between South America and Africa; Ascension Island lies 1,300 km (800 mi) northwest of Saint Helena; Tristan da Cunha lies 4,300 km (2,700 mi) southwest of Saint Helena Area: total : 394 sq km; land: 122 sq km Saint Helena Island; water: 0 sq km; 88 sq km Ascension Island, 184 sq km Tristan da Cunha island group (includes Tristan (98 sq km), Inaccessible, Nightingale, and Gough islands) Climate: Saint Helena: tropical marine; mild, tempered by trade winds; Ascension Island: tropical marine; mild, semi-arid; Tristan da Cunha: temperate marine; mild, tempered by trade winds (tends to be cooler than Saint Helena) Terrain: the islands of this group are of volcanic origin associated with the Atlantic Mid-Ocean Ridge; Saint Helena: rugged, volcanic; small scattered plateaus and plains; Ascension: surface covered by lava flows and cinder cones of 44 dormant volcanoes; terrain rises to the east; Tristan da Cunha: sheer cliffs line the coastline of the nearly circular island; the flanks of the central volcanic peak are deeply dissected; narrow coastal plain lies between The Peak and the coastal cliffs Natural hazards: active volcanism; volcanism: the volcanoes of Tristan da Cunha (2,060 m) and Nightingale Island (365 m) are active Environmental issues: development threatens wildlife on Saint Helena

Population, settlement, and language context

Population: total: 7,943 (2024 est.); male: 3,978; female: 3,965 Population distribution: Saint Helena: population is concentrated in and around the capital of Jamestown in the northwest, with another significant cluster in the interior Longwood area; Ascension: most of the population lives in and around Georgetown; Tristan da Cunha: most of the nearly 300 inhabitants live in the northern coastal town of Edinburgh of the Seven Seas Urbanization: urban population: 40.7% of total population (2023); rate of urbanization: 0.98% annual rate of change (2020-25 est.) Languages: English

Public and legal context

Capital: name: Jamestown; geographic coordinates: 15 56 S, 5 43 W; time difference: UTC 0 (5 hours ahead of Washington, DC, during Standard Time); etymology: founded in 1659 and named after James, Duke of York, who would become King JAMES II of England Government type: parliamentary democracy Legal system: English common law and local statutes Dependency status: overseas territory of the UK

Economy and connectivity context

Economic overview: upper middle-income, British Atlantic Ocean territorial economy; native (but pegged to British pound) currency user on 2 of 3 islands; significant UK financial support; unique land/farming commune structure; military-related economic activity; sport fishing locale Industries: construction, crafts (furniture, lacework, fancy woodwork), fishing, collectible postage stamps Electricity access: electrification - total population: 100% (2021) Internet users: percent of population: 37.6% (2021 est.) Airports: 2 (2025) Ports: total ports: 4 (2024); large: 1; medium: 1; small: 1; very small: 1; ports with oil terminals: 2; key ports: Edinburgh of the Seven Seas, Georgetown, Jamestown, North Point

Interpretation and freshness boundary

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