As a continent, most likely. As a region of the earth, I'd bet that a selected area of the Pacific Ocean has fewer.
Antarctica has the fewest people, and Australia has the second fewest.
Antarctica has the fewest people, with no permanent residents and only a small transient population of scientists and support staff.
Antarctica has the fewest number of people, as it is mostly uninhabited apart from research stations.
Antarctica is the continent with the fewest people living on it. The population of Antarctica consists mainly of research scientists and support staff, with no indigenous population.
Australia.
Antarctica has no permanent population
Antarctica is the continent that has the fewest flowering plants.
The Vatican City has the fewest people, with a population of around 800 residents.
Antarctica is the continent with the fewest countries, as it has no permanent inhabitants.
Antarctica has the fewest people living on it, with only a few thousand people inhabiting scientific research stations year-round.
Antarctica has a permanent population of zero.
Antarctica has the fewest number of nations, as it has none.