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Australia

Australia, officially the Commonwealth of Australia, is a sovereign country comprising the Australian mainland, the island of Tasmania, and numerous smaller islands.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

Australia, officially the Commonwealth of Australia, is a sovereign country comprising the Australian mainland, the island of Tasmania, and numerous smaller islands. It is a federal parliamentary democracy and constitutional monarchy, with Canberra as its capital. Australia is the world's sixth-largest country by land area and the only country that occupies an entire continent.

Geography

Australia is a large island continent in the Southern Hemisphere, bordered by the Indian and Pacific Oceans. Its geography includes deserts, tropical rainforests, and a wide range of climates across a vast land area.

Government and politics

Australia is a federation with a parliamentary system and a constitutional monarchy. The national constitution has remained largely unchanged since Federation in 1901.

Population and cities

Australia has a population of nearly 29 million people and is heavily urbanised. Sydney and Melbourne are its largest cities, and Canberra serves as the national capital.

Territory and extent

The country consists of the mainland, Tasmania, and numerous smaller islands, including several remote external territories. Its mainland and island territories make it one of the world's largest sovereign states.

Key facts

  • Australia includes the mainland Australian continent, Tasmania, and several offshore islands.
  • It is the sixth-largest country in the world by land area.
  • Its political system combines a constitutional monarchy, a parliamentary democracy, and a federal structure.
  • The country has six states and ten territories.
  • Canberra is the capital, while Sydney and Melbourne are the largest cities.
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Canadian context

Australia and Canada are both Commonwealth realms with parliamentary systems and constitutional monarchies, which makes Australia relevant for Canadian readers interested in comparative government and international relations.

Frequently asked questions

What is Australia’s official name?
Australia’s official name is the Commonwealth of Australia.
What is the capital of Australia?
The capital of Australia is Canberra.
Is Australia a country or a continent?
Australia is both a sovereign country and the mainland of the Australian continent.
How is Australia governed?
Australia is a federal parliamentary democracy and constitutional monarchy.
What are Australia’s largest cities?
Sydney and Melbourne are Australia’s largest cities, each with a population of more than five million.

References

  1. Wikipediahttps://en.wikipedia.org/wiki/Australia
    Supports: Official name, land area, political system, federal structure, capital, population, and city information.
  2. Encyclopaedia Britannicahttps://www.britannica.com/place/Australia
    Supports: Capital, area, population, and description as a federal parliamentary state and constitutional monarchy.
  3. National Geographic Kidshttps://kids.nationalgeographic.com/geography/countries/article/australia
    Supports: Australia occupying an entire continent, geography, population distribution, and historical overview.