Melbourne is the capital and most populous city in the state of Victoria, and the second most populous city in Australia. The Melbourne City Centre is the hub of the greater metropolitan area and the Census statistical division—of which "Melbourne" is the common name. As of June 2011, the greater geographical area had a population of 4.17 million. Inhabitants of Melbourne are called Melburnians. The metropolis is located on the large natural bay known as Port Phillip, with the city centre positioned on the estuary of the Yarra River (at the northernmost point of the bay). The metropolitan area then extends south from the city centre, along the eastern and western shorelines of Port Phillip, and expands into the hinterland. The city centre is situated in the municipality known as the City of Melbourne. The metropolitan area consists of a further 30 municipalities.