Countries
Key facts
- Capital
- none
- Region
- Antarctic
- Population
- none
- Area
- 412 km²
- Currency
- none
- Languages
- English
- Calling code
- +
- Internet domain
- .hm, .aq
- ISO codes
- HM, HMD, 334
- Time zone
- not listed
- United Nations
- Not a member
- Postal code pattern
- #### (# = digit, @ = letter)
Land and position
Heard Island and McDonald Islands covers about 412 square kilometres. By area it ranks 208th among the 250 countries and territories on this site. It is a little smaller than Barbados and a little larger than Saint Helena, Ascension and Tristan da Cunha. It has no land border with any other country. Its centre lies at about 53° south, 73° east, in the southern hemisphere.
People
It has no permanent population. Languages listed for it: English.
More in the Antarctic region
Antarctica, Bouvet Island, French Southern and Antarctic Lands, South Georgia. See the whole region.
Figures were collected on 11 November 2026 from the World Bank, GeoNames and the open countries data set. See About and data sources. Borders and names follow those sources and do not express any view on disputed territory.