The flag of the British Indian Ocean Territory is white with six blue, wavy, horizontal stripes. The UK flag is in the canton. The striped section has a palm tree and yellow crown centered in the fly half.

Flag of British Indian Ocean Territory · ISO IOT

Africa · Eastern Africa

British Indian Ocean Territory

A complete geographic profile of British Indian Ocean Territory — capital city, flag, borders, population, languages, currencies and a live map, drawn from open data sources and updated as those sources update.

  • CapitalDiego Garcia
  • Population
  • Area60 km²
  • ISO 3166IO / IOT

Overview

British Indian Ocean Territory is a recognised territory located in Africa, specifically within the Eastern Africa subregion. It covers approximately 60 km² and is home to an estimated people. The country has coastline along international waters, which has shaped its trade routes, climate, cuisine, and cultural exchanges with the rest of the world. Its capital is Diego Garcia, which serves as the political and (in most cases) economic centre of the country, hosting the seat of government and the principal international airport.

This profile pulls together the structured facts that most readers want at a glance — capital, currency, languages, borders — and links onward to the maps and neighbouring countries you are likely to need next. Every figure on this page is rendered server-side from a single dataset, so what you see here matches the regional indexes, statistics rankings, and continental hubs elsewhere on MapVista.

For travellers, students, journalists, and the merely curious, the goal is simple: a single readable page per country that answers the questions you actually asked, without redirecting you to a sign-up screen or a paywall. Citizens of British Indian Ocean Territory are commonly described as Indian, a demonym you will encounter in news coverage and academic writing alike.

Geography & borders

British Indian Ocean Territory is a microstate, covering approximately 60 km² of land in Africa (specifically the Eastern Africa subregion). The country has coastline along international waters, which has shaped its trade routes, climate, and cultural exchanges with the rest of the world. Its approximate geographic centre lies at 6.00° S, 71.50° E, placing it in the southern hemisphere on a line with several other Eastern Africa nations. British Indian Ocean Territory has no land borders and is reached entirely by sea or air, a status it shares with the world's other island nations and isolated peninsulas.

No land borders are recorded — this is typical of island nations, archipelagos, and microstates that lack land neighbours, with the open ocean serving as the country's only frontier.

Live map

Map data © OpenStreetMap contributors, ODbL. · Open in OpenStreetMap · Open in Google Maps

People, demographics & density

With an estimated — residents, British Indian Ocean Territory is one of the smallest populations of any sovereign state. The capital, Diego Garcia, anchors the country's political and often economic life and is usually the first city most international visitors encounter. Citizens of British Indian Ocean Territory are commonly described as Indian.

Editor's pick. For a deeper dive into how national populations are estimated and projected, see our companion field guide to demographic data and methodology notes.

Languages, currency & culture

Culturally, English is the sole official language in British Indian Ocean Territory, while United States dollar (USD) is the official currency. Like every country in the catalogue, the linguistic situation on the ground is often more layered than the official picture, with regional languages, immigrant communities, and minority tongues woven through everyday life.

Official and recognised languages

  • EnglishISO 639 code: eng

Official currencies

  • United States dollarISO 4217: USD · $

Language and currency data are drawn from open sources and reflect the official position rather than the full sociolinguistic picture on the ground. Many countries recognise minority and regional languages in addition to the official ones listed here, and some use multiple currencies in practice — particularly in border regions and tourist economies.

Practical information

British Indian Ocean Territory operates on a single time zone, UTC+06:00, and uses the country-code top-level domain .io online. Vehicles drive on the right-hand side of the road.

  • Time zonesUTC+06:00
  • Top-level domain.io
  • Driving sideRight
  • UN memberNo
  • LandlockedNo
  • IndependentNo
  • DemonymIndian

Maps & downloads

The flag image above is available in both raster and vector format. For a full-resolution download, right-click and save the linked file. Map links open in your preferred mapping provider so you can zoom into specific regions or plan a route. For deeper terrain and elevation data, our geographic resource library collects the best free atlases.

  • Flag (SVG, vector)OpenLicence: open source · Author: country dataset
  • Flag (PNG, raster)OpenLicence: open source · Author: country dataset
  • Map on OpenStreetMapOpenLicence: ODbL · Source: OpenStreetMap contributors
  • Map on Google MapsOpenLicence: Google Maps terms · Source: Google

About this profile

This page is one of 250 country profiles on MapVista. The structured facts are sourced from open datasets that aggregate official records — see our methodology for the full list of sources and how we handle disputes, succession, and edge cases. The narrative paragraphs are written to give context to the numbers, but the figures themselves are not invented; if a value is missing it is shown as a dash rather than a guess.

If you spot an out-of-date figure or a misclassification, please reach us via the contact page. We refresh the underlying dataset regularly and corrections are applied at the next rebuild.