Antarctica, and I think by quite a long shot
antartica is a Icy wasteland that has only (reletivley) recently been discovered. besides that, It is an Icy Barren wasteland that is impossible to grow food on. anyway, it's cold. nobody even wants...
Its Oceania
Australia is the smallest continent, but it is not the least populated. The least populated continent is Antarctica.
According to the QuickFacts U.S. Census Bureau website it is Alpine County with an estimated population fo 1,061 in 2008.