As of the year 2024, Arunachal Pradesh now features 26 districts, marking a notable increase from the 16 recorded in the previous census of 2011.
Longding, Namsai, Kra Daadi, Siang, Lower Siang, Kamle, Pakke-Kesang, Lepa-Rada, Shi-Yomi, Bichom, Keyi Panyor District Formed Derived from
Longding 19-Mar-2012 Tirap District
Namsai 25-Nov-2014 Lohit District
Kra Daadi 07-Feb-2015 Kurung Kumey District
Siang 27-Nov-2015 Parts of East Siang and West Siang Districts
Lower Siang 22-Sep-2017 West Siang and East Siang Districts
Kamle 04-Dec-2017 Lower Subansiri and Upper Subansiri Districts
Pakke-Kesang 30-Aug-2018 East Kameng District
Lepa-Rada 30-Aug-2018 Lower Siang District
Shi-Yomi 30-Aug-2018 West Siang District
Bichom 07-Feb-2024 West Kameng and East Kameng Districts
Keyi Panyor 07-Feb-2024 Lower Subansiri District