All mainland Australia except south-western WA, Kimberley Divide, Arnhem Land, Cape York Peninsula, coastal eastern Australia east and south of the Great Divide and wet southern SA.
 
Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.
Purple-backed Fairywren (Malurus assimilis) [XC594043]
by Marc Anderson from Stud Creek, Sturt National Park, New South Wales, Australia (alarm call, call)
Purple-backed Fairywren (Malurus assimilis) [XC407794]
by Frank Lambert from Lyndhurst, South Australia, Australia (call)
Subspecies
The following 4 subspecies are recognised:
dulcis Mathews, 1908 - Arnhem Land, NT east of the Daly River.
rogersi Mathews, 1912 - The Kimberley Divide, WA east to the Ord River Drainage.
assimilis North, 1901 - All mainland Australia except south-western WA, Kimberley Divide, Arnhem Land, Cape York Peninsula, coastal eastern Australia east and south of the Great Divide and wet southern SA.
bernieri Ogilvie-Grant, 1909 - Bernier Island, WA.