 In the late 1960s, a dramatic population increase amongst the Matengo peoples of the region led to food shortages, which had a direct impact upon the distribution of the people, with many moving to the eastern part of the district and forming new villages to farm the land seasonally.Mbinga district comprises four ethnic groups namely the Matengo, the Ngoni, the Manda and Nyasa and the Matengo constitute 60% of the population with a population density of 34 people/km², as of 2000.Specifically, in the Matengo Highlands the Matengo population density was reported to be 120/km².