23 232 413 inhabitants (2017)
English 25.9%, Australian 25.4%, Irish 7.5%, Scottish 6.4%, Italian 3.3%, German 3.2%, Chinese 3.1%, Indian 1.4%, Greek 1.4%, Dutch 1.2%, other 15.8% (includes Australian aboriginal .5%), unspecified 5.4%
Protestant 30.1% (Anglican 17.1%, Uniting Church 5.0%, Presbyterian and Reformed 2.8%, Baptist, 1.6%, Lutheran 1.2%, Pentecostal 1.1%, other Protestant 1.3%), Catholic 25.3% (Roman Catholic 25.1%, other Catholic 0.2%), other Christian 2.9%, Orthodox 2.8%, Buddhist 2.5%, Muslim 2.2%, Hindu 1.3%, other 1.3%, none 22.3%, unspecified 9.3% (2011)
$49 900 (2017)
7 741 220 sq km
6 870 741 sq km (mainland) + 475 738 sq km (Macquarie island) + 430 746 sq km (Norfolk island) + 35 039 sq km (joint regime area Australia/Timor Leste) + 327 994 sq km (Christmas island) + 467 439 sq km (Cocos Islands) + 417 353 sq km (Heard and McDonald Islands) + 3716 sq km (Protected Zone established under the Torres Strait Treaty)
Australian Defense Force including Australian Army, Royal Australian Navy, Royal Australian Air Force, Joint Operations Command
    1) In 2007, Australia and East Timor agreed on an agreement establishing permanent maritime boundaries between the two countries for the equitable sharing of oil resources in the Timor Sea.
    2) Australia asserts land and maritime claims to Antarctica.
    3) Tasmania is the country where the demand for illicit opiates is one of the most important in the world.