ANTARCTIC
Heard Island and McDonald Islands
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Last Updated
Apr 23, 2026
About Heard Island and McDonald IslandsOverview, geography, and key facts
The Territory of Heard Island and McDonald Islands (HIMI) is an Australian external territory comprising a volcanic group of mostly barren Antarctic islands, about two-thirds of the way from Madagascar to Antarctica. The group's overall land area is 372 km2 (144 sq mi) and it has 101.9 km (63 mi) of coastline. Discovered in the mid-19th century, the islands lie on the Kerguelen Plateau in the southern Indian Ocean and have been an Australian territory since 1947.
Area
412 km²
Languages
English
Currency & Economy
Geography & Practical Details
- Region
- Antarctic
- Area
- 412 km²
- Timezone
- UTC+05:00
- Languages
- English
- Drives On
- Right
- ISO Code
- HM