Port MacDonnell, originally known as Ngaranga is the southernmost town in South Australia. The small port located in the Limestone Coast region about 477 kilometres (296 mi) southeast of Adelaide and 28 kilometres (17 mi) south of Mount Gambier in the District Council of Grant local government area. The 2016 Australian census which was conducted in August 2016 reports that the locality of Port MacDonnell had a population of 847 of which 671 lived in its town centre. Once a busy shipping port, the town now relies heavily on its fishing and summer tourism industries, particularly rock lobster harvest industry, proclaiming itself "Australia's Southern Rock Lobster Capital".