Streetdirectory.com Australia, provides a variety of customized Australia Maps, streetmaps and satellite images. Australia is the only country in the world that is also a continent. It has a population of 22 million, with approximately 60 per cent concentrated in and around the mainland state capitals of Sydney, Melbourne, Brisbane, Perth and Adelaide. Approximately 56 per cent of Australia's population live in either Victoria or New South Wales, and approximately 77 per cent live on the mainland's east coast (Queensland). With over 1.2 million registered businesses, Australia is the world's 13th largest economy. You can find all the businesses in our Australia Business Directory page. Australia ranks highly in many international comparisons of national performance such as human development, quality of life, health care, life expectancy, political rights etc. Australia is a member of the United Nations, G20, Commonwealth of Nations, ANZUS, OECD, APEC, Pacific Islands Forum and the World Trade Organization.