Sydney is the largest city in Australia, and the state capital of New South Wales. Sydney has a metropolitan area population of approximately 4.34 million and an area of approximately 12,000 square kilometres. Its inhabitants are called Sydneysiders, and Sydney is often called "the Harbour City". It is one of the most multicultural cities in the world, reflected in its role as a major destination for immigrants to Australia.
Sydney is considered an alpha+ world city, listed by the Loughborough University group's 2008 inventory and ranked 16th among global cities by Foreign Policy's 2008 Global Cities Index. According to the Mercer cost of living survey, Sydney is Australia’s most expensive city, and the 66th most expensive in the world. Sydney also ranks among the top 10 most livable cities in the world according to Mercer Human Resource Consulting and The Economist.
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