Australia is the sixth largest country in the world by area and the largest country in Oceania, the largest borderless country, as well as the largest country wholly in the Southern Hemisphere. Australia's total area is 7,617,930 square kilometers, whereas its total population is 22,806,509. Australia's population density is 233rd in the world that is 2.8/km2. Australia a highly developed country has the world's sixth-highest per capita income and is the world's thirteenth largest economy. Australia has six states—New South Wales, Queensland, South Australia, Tasmania, Victoria, and Western Australia. The Australian dollar is the currency of the country and the per capita income is more than $66,000.

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