Note: Australia is generally considered to be a continental landmass, rather than an island. If however one does count Australia among the islands it, not Greenland, would be the largest in the world (unless one also considered Antarctica an island).
... 45.9% are married couples living together, 8.2% have a female householder with no husband present, and 42.6% are non-families. 29.5% of all households are made up of ...