, Arunachal Pradesh comprised 26 districts, with more districts proposed. Most of the districts are inhabited by various tribal groups. The latest and presently valid official map of districts of Arunachal Pradesh, after the most recent new districts were last announced on 30 August 2018, is in the external links. History When control of the North-East Frontier Agency was transferred to the Ministry of Home Affairs in September 1965 its five divisions, Kameng, Subansiri, Siang, Lohit and Tirap each became districts. Over the next few years many new districts were created out of the original five: On 13 May 1980 Subansiri district was bifurcated into two districts: Lower Subansiri district and Upper Subansiri district. Upper Subansiri district comprised the area occupied by the erstwhile Daporijo sub-division and Lower Subansiri district comprised the rest of the area occupied by the erstwhile Subansiri district. On 1 June 1980, The erstwhile Lohit district was divided into two districts: Lohit district and Dibang Valley district. Siang district was bifurcated into two districts: East Siang district and West Siang district. Seppa and Bomdila sub-divisions of the Kameng district were transformed into East Kameng district and West Kameng district, respectively. On 6 October 1984, Tawang district was separated from East Kameng district. In 1987, the erstwhile Tirap district was divided into two districts: Tirap district and Changlang district. On 22 September 1992, the erstwhile Lower Subansiri district was again bifurcated into Lower Subansiri district and Papum Pare district. On 23 November 1994, Upper Siang district was split from East Siang district. On 1 April 2001, Kurung Kumey district was carved out from the erstwhile Lower Subansiri district. On 16 December 2001, Dibang Valley district was bifurcated into Dibang Valley district and Lower Dibang Valley district. On 16 February 2004, Anjaw district was carved out from the erstwhile Lohit district. On 19 March 2012, Longding district was carved out from the erstwhile Tirap district. On 25 November 2014, Namsai district was carved out from the erstwhile Lohit district. On 7 February 2015, Kra Daadi district was carved out from the erstwhile Kurung Kumey district. On 27 November 2015, a new Siang district was carved out from parts of East Siang and West Siang districts. On 22 September 2017, Lower Siang district, was carved out of West Siang and East Siang districts. On 4 December 2017, a new district called Kamle district was created from Lower Subansiri District