Alonnah is a small township

Township

The word township is used to refer to different kinds of settlements in different countries. Township is generally associated with an urban area. However there are many exceptions to this rule. In Australia, the United States, and Canada, they may be settlements too small to be considered urban...

 on the western side of Bruny Island, Tasmania

Tasmania

Tasmania is an Australian island and state. It is south of the continent, separated by Bass Strait. The state includes the island of Tasmania—the 26th largest island in the world—and the surrounding islands. The state has a population of 507,626 , of whom almost half reside in the greater Hobart...

, facing the D'Entrecasteaux Channel

D'Entrecasteaux Channel

The D'Entrecasteaux Channel is a region of water between Bruny Island and the south-east of the mainland of Tasmania. It extends between the estuaries of the Derwent, and the Huon Rivers...

. Originally named Mill's Reef, it was renamed in the early 1900s after part of the Tasmanian aboriginal name for Bruny Island, Lunawanna-alonnah (a nearby township a little to its south being named Lunawanna. At the 2006 census

Census in Australia

The Australian census is administered once every five years by the Australian Bureau of Statistics. The most recent census was conducted on 9 August 2011; the next will be conducted in 2016. Prior to the introduction of regular censuses in 1961, they had also been run in 1901, 1911, 1921, 1933,...

, Alonnah had a population of 302.