Outline of Australia


The following outline is provided as an overview of and topical guide to Australia:

Australia, officially the Commonwealth of Australia, is a country comprising the mainland of the Australian continent, the island of Tasmania and numerous smaller islands. It has a total area of 7,688,287 km2 (2,968,464 sq mi), making it the sixth-largest country in the world and the largest in Oceania. Australia is the world's flattest and driest inhabited continent. It is a megadiverse country, and its size gives it a wide variety of landscapes and climates including deserts in the interior and tropical rainforests along the coast.

The ancestors of Aboriginal Australians began arriving from Southeast Asia 50,000 to 65,000 years ago, during the Last Glacial Period. By the time of British settlement, Aboriginal Australians spoke more than 250 distinct languages and had one of the oldest living cultures in the world. Australia's written history commenced with Dutch exploration of most of the coastline in the 17th century. British colonisation began in 1788 with the establishment of the penal colony of New South Wales. By the mid-19th century, most of the continent had been explored by European settlers and five additional self-governing British colonies were established, each gaining responsible government by 1890. The colonies federated in 1901, forming the Commonwealth of Australia. This continued a process of increasing autonomy from the United Kingdom, highlighted by the Statute of Westminster Adoption Act 1942, and culminating in the Australia Acts of 1986.

General reference

Geography

Geography of Australia

Environment

Environment of Australia

Geographic features

Regions

Multi-state regions

Administrative divisions

States and territories of Australia

States
Territories
Mainland territories
External territories
Municipalities

Local government in Australia

Demography

State/territory Land area (km2) Rank Population (2025)[1] Rank Population density (/km2) Rank % of population in capital Rank
 New South Wales 801,150 5th 8,593,871 1st 10.49 3rd 64.7% 5th
 Victoria 227,444 6th 7,074,468 2nd 30.18 2nd 75.6% 4th
 Queensland 1,723,030 2nd 5,674,834 3rd 3.18 5th 49.0% 7th
 Western Australia 2,527,013 1st 3,043,731 4th 1.15 7th 78.3% 2nd
 South Australia 984,321 4th 1,902,331 5th 1.89 6th 77.2% 3rd
 Tasmania 68,402 7th 575,960 6th 8.89 4th 44.3% 8th
 Australian Capital Territory 2,358 8th 484,792 7th 198.97 1st 97.7% 1st
 Northern Territory 1,347,791 3rd 264,411 8th 0.19 8th 57.7% 6th

Government and politics

Elections in Australia

Elections in Australia

Political parties in Australia

List of political parties in Australia

Federal parties

Current major parties/groupings (May 2025)
Minor parties/groupings

State/territory parties

Queensland
Northern Territory

Federal government of Australia

Government of Australia

Executive branch

Legislative branch

Judicial branch

Judiciary of Australia

Military

Australian Defence Force (ADF)

Foreign relations

International organisation membership

The Commonwealth of Australia is a member of:[2]

Law and order

Law of Australia

Law enforcement in Australia

Law enforcement in Australia

State and territory governments

The states of Australia are governed by Premiers, and the territories are governed by Chief Ministers.

Local government

History

History of states

Indigenous Australia

Culture

Economy and infrastructure

State economies

Education

States education

Religion and belief systems in Australia

Sport

Sport in Australia

See also

References

  1. ^ a b "Australian Bureau of Statistics Population clock and pyramid". Retrieved 17 March 2026.
  2. ^ "Australia". The World Factbook. United States Central Intelligence Agency. 2 July 2009. Archived from the original on 9 January 2021. Retrieved 23 July 2009.

Government