By DickDaniels (http://carolinabirds.org) (Own work) [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0) -
Australia. Much of Australia including Tasmania but absent from eastern Western Australia and western South Australia and also regions of the north.
Least Concern
NBN atlas has 113 records as at end 2024. Map Here.
Like all other ducks in captivity they are not generally kept in secure confinement and they may stray. Apparantly quite hardy in Britain and could possibly survive without assistance.