Australia is a very large island-continent, but it is practically empty. Indeed, with barely more than 3 inhabitants per km2, it is mostly desert. The country’s population growth remains very strong, at +1.6% per year, mainly due to immigration.
The population is concentrated in a few large cities, all located on the coast. Sydney has just surpassed 5 million people and Melbourne is almost reaching that mark. And the other big cities that are Brisbane (2.4 million inhabitants) and Perth (2 million inhabitants) are not left behind. An urban concentration that increases with time.