Karrangpurru is believed to have belonged to the easternNgumpin branch of the Ngumpin-Yapa languages. Nothing is known of their language, Karranga, since its many of its speakers were wiped out without any items from it being recorded. Patrick McConvell has suggested it may have been a dialect of Mudburra. They were also known as the Karranga. The form Karrangpurru registered by David Horton, is formed from that word and the familiar suffix -purru.
Karrangpurru lands were subsumed into the Victoria River Downs Station when it was established in 1883. A combination of massacres and the impact of diseases introduced by whites penetrating their country effectively decimated the population. A handful of people belonging to one family claim that they have Karrangpurru heritage by descent.