Save the Koala Day. In April 2012, the Australian Government declared the Koala as ‘vulnerable’ under the Federal EPBC Act in New South Wales, the Act and Queensland. The Australian Koala Foundation estimates that there are less than 100,000 Koalas left in the wild, possibly as few as 43,000. There are four Australian states where Koalas occur in the wild—Queensland, New South Wales, Victoria and South Australia.