| Area (km2): | 7 692 024 (land area) 12 000 000 (offshore area) |
| Population (million): | 20.9 (2006) |
| System of Government: | Federation ('Commonwealth') of six States - New South Wales, Victoria, Queensland, Western Australia, South Australia, Tasmania - and two mainland Territories - Northern Territory and Australian Capital Territory Parliamentary democracy based on Westminster system; Federal Parliament consisting of House of Representatives and Senate |
| Capital: | Canberra (population approximately 326,700 as at December 2005) |
| Main cities (population million): | Sydney (4.2), Melbourne (3.5), Brisbane (1.7), Perth (1.4), Adelaide (1.1), Hobart (0.2), Darwin (0.1) |
| Official language: | English |
| Gross Domestic Product (current prices): | US$889.7 billion (2007) |
| Exchange rate (December 2007): | A$1 = US$0.8618 A$1 = EU$0.5976 |
| GDP per capita (current prices): | US$42,553181 (2007) |