[2] Before the bifurcation, East Kameng district occupied an area of 4,134 square kilometres (1,596 sq mi),[3] comparatively equivalent to Alaska's Unimak Island.

With the advancement of modern technology, horticulture based on apples and oranges is becoming increasingly popular.

The district's administrative divisions are Chayangtajo, Sawa, Khenewa, Bameng, Lada, Gyawe Purang, Pipu, Seppa, and Richukhrong.

[10] According to the 2011 census East Kameng district has a population of 78,690,[12] roughly equal to the nation of Dominica.

[12] East Kameng is inhabited by various tribes of similar origin but with distinct cultures and beliefs, practising the Donyi-Polo religion.

With the coming of modernism, festivals such as the Sarok of the Aka, Nyokum of the Nishi, Jonglam-Ponklam and Chindang of the Miji and the Gumkum-Gumpa are celebrated in full flair in Seppa.

Religion in East Kameng District (2011) The Nishi is a Tibeto-Burman language spoken by approximately 800–1200 people in the East Kameng district who live among the Aka (Hruso), but their language is distantly related, with distinct words for basic vocabulary.

[18] Koro was recognized as a separate language in 2010 by a linguistic team of David Harrison, Gregory Anderson, and Ganesh Murmu while documenting two Hruso languages (Aka and Miji) as part of National Geographic's "Enduring Voices" project.