British Indian Ocean Territory: cities by population
British Indian Ocean Territory has a population of 4,000, with Diego Garcia as its capital. The 2 largest of its 2 recorded towns and cities, ranked.
Figures are the latest available in GeoNames (CC BY 4.0), which draws on national censuses of varying dates — treat them as recent, not same-year. Country totals are UN World Population Prospects 2024 (medium variant) where the UN lists the country separately; the handful it reports under a parent state keep a GeoNames figure and are marked as such. Sources & method.
The UN's World Population Prospects does not list British Indian Ocean Territory separately — it is reported under a parent state, or is not a UN member — so the total above comes from GeoNames and carries no stated vintage. Treat it as approximate.
Largest cities in British Indian Ocean Territory
| # | Place | Region | Population |
|---|---|---|---|
| 1 | Downtown | 3,000 | |
| 2 | Seabreeze village | 1,000 |
Common questions
What is the population of British Indian Ocean Territory?
British Indian Ocean Territory has a population of 4,000, a GeoNames figure with no stated vintage, so treat it as approximate.
What is the capital of British Indian Ocean Territory?
Diego Garcia. The largest place we record there is Downtown, with 3,000 people.