From the Wikipedia page 
Makete District is one of the six districts of Njombe Region of Tanzania. Its administrative seat is the town of Iwawa. It is bordered to the North and West by the Mbeya Region, to the East by the Njombe District and to the South by the Ludewa District. It is divided into six divisions and 17 wards. Makete District was founded in 1979 with the policy of the Ujamaa. Before, this part of Iringa Region belonged to Njombe District.