Total area: 412 km2
land area: 412 km2

Comparative area: slightly less than 2.5 times the size of Washington, DC

Land boundaries: none

Coastline: 101.9 km

Maritime claims:
@m5Contiguous zone: 12 nm
@m5Continental shelf: 200 meters or to depth of exploration
@m5Exclusive fishing zone: 200 nm
@m5Territorial sea: 3 nm

Climate: antarctic

Terrain: Heard Island--bleak and mountainous, with an extinct volcano; McDonald Islands--small and rocky

Land use: 0% arable land; 0% permanent crops; 0% meadows and pastures; 0% forest and woodland; 100% other

Environment: primarily used as research stations

Note: located 4,100 km southwest of Australia in the southern Indian Ocean

NOTE: The information regarding Heard Island and McDonald Islands on this page is re-published from the 1989 World Fact Book of the United States Central Intelligence Agency. No claims are made regarding the accuracy of Heard Island and McDonald Islands Geography 1989 information contained here. All suggestions for corrections of any errors about Heard Island and McDonald Islands Geography 1989 should be addressed to the CIA.