As per Provisional population figures of 2011 Census, the total no of Mandals are 64.
|Area||7,032 Sq Km|
|No. of Census||2011|
|No. of Villages||551|
According to the 2011 census Upper Subansiri district has a population of 83,205, roughly equal to the nation of Andorra. This gives it a ranking of 621st in India (out of a total of 640). The district has a population density of 12 inhabitants per square kilometre (31/sq mi) . Its population growth rate over the decade 2001–2011 was 50.34%. Upper Subansiri has a sex ratio of 982 females for every 1000 males, and a literacy rate of 63.96%.
Members of the Tagin, Nyishi and Galo are found in the district.