Australia and the Islands
Australia is generally regarded as an island continent and as such, at 7 682 300 square Km, is the largest island on the planet.
Take a look at Great Britain in the pie charts, above and left, and you will see why I left Australia out of the graph above.
Great Britain is a little less than three and a half times the size of Australia's island state, Tasmania, which is Australia's smallest state with a population of just under 500 000 people.
Included, below, is a pie chart showing the difference along with Victoria, Canada.