Tasmania (abbreviated as Tas and known colloquially as "Tassie") is an island state, part of the Commonwealth of Australia, located 240 kilometres (150 mi) 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 (26,410 sq mi), of which the main island covers 62,409 square kilometres (24,096 sq mi).
Tasmania is promoted as the natural state, the "Island of Inspiration", 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 (226 mi) long from its northernmost to its southernmost points, and 306 kilometres (190 mi) from west to east.
The state capital and largest city is Hobart, which encompasses the local government areas of City of Hobart, City of Glenorchy, and City of Clarence, while the satellite town of Kingston (part of the Municipality of Kingborough) is generally included in the Greater Hobart area.
The northernmost terrestrial point of the state of Tasmania is Boundary Islet, a nature reserve in Bass Strait which, due to a quirk of history, is shared with the state of Victoria.
The subantarctic Macquarie Island and its surrounding islands are also under the administration of Tasmania as a nature reserve and part of the Huon Valley Council local government area. The Bishop and Clerk Islets, about 37 km south of Macquarie Island, are the southernmost terrestrial point of the state of Tasmania, and the southernmost internationally recognised land in Australia.