Tasmania (abbreviated as Tas and known colloquially as "Tassie") is an island state, part of the Commonwealth of Australia, located 240 kilometres to the south of the Australian continent, separated by Bass Strait. The state includes the island of Tasmania, the 26th largest island in the world, and the surrounding 334 islands. The state has a population of 507,626 (as of June 2010), of whom almost half reside in the greater Hobart precinct. Tasmania's area is 68,401 square kilometres, of which the main island covers 64,519 square kilometres.
Tasmania is promoted as the natural state, and A World Apart, Not A World Away owing to its large and relatively unspoiled natural environment. Almost 45% of Tasmania lies in reserves, national parks and World Heritage Sites. The island is 364 kilometres long from its northernmost to its southernmost points, and 306 kilometres from east to west.