The species is from Australia. Black Headed Python are distributed throughout the northern third of Australia, from east to west across the continent. These ranges include a majority of the Northern Territory, the northern latitudes of Queensland and the northern third of Western Australia.
There may also be small blotches between the stripes along the sides of some specimens.
The venter can range from white to pink, but can also exhibit dark spots similar those along the dorsum.
Coloration of black-headed pythons can vary extensively depending on age and geographic location. For example, Western Australisan specimen are much lighter with reddish overtones than those found in the Northern Territory and Queensland, which have darker, more intense striping patterns. Furthermore, older specimens tend to be paler with less distinctive markings.