Western Australia is a state of Australia, occupying the entire western third of the Australian continent. Australia's largest state and the second largest subnational entity in the world, it has 2.2 million inhabitants (10% of the national total), 85% of whom live in the south-west corner of the state. The state's capital city is Perth. The people of Western Australia are often colloquially referred to as sandgropers, the common name of an insect found on sand dunes around Perth.