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Heard Island and McDonald Islands

Territory in Antarctic

CountryScope

In brief

Area: 412 km². World rank 207 of 249.

State

Official name
Heard Island and McDonald Islands
Local name
Heard Island and McDonald Islands
Region
Antarctic
UN member
No

Key figures

Area
412 km²

Practical information

Languages
English

Territory

Sea access
Has a coastline
Coastline, km
102
Neighbours
None

Elevation

Highest point
Mawson Peak, 2,745 m
Lowest point
Indian Ocean, 0 m

Safety

Natural hazards
volcanoes

Internet and communications

Internet domain
.hm .aq

Data: World Bank Open Data (CC BY 4.0), mledoze/countries (ODbL 1.0), Unicode CLDR; borders: Natural Earth. The year next to a figure is the year of the data.

Source: CountryScope (https://countryscope.org/en/country/heard-island-and-mcdonald-islands), based on World Bank Open Data (CC BY 4.0). Retrieved October 24, 2026.