According to the 2011 Census of India, the Daporijo town area had a population of approximately 15,468 residents. As a district headquarters, the town has experienced steady population growth driven by rural-to-urban migration, with people moving in search of education, employment, and better access to healthcare. The gender ratio in the town slightly favors males, a common trend in administrative and military-adjacent frontier towns due to migrant labor and government postings.
The ethnic composition of Daporijo is predominantly tribal. The Tagin tribe forms the majority, alongside significant populations of the Galo and Nyishi tribes. There is also a diverse community of people from other parts of India who work in government, education, and commerce. Spiritually, the population is a mix of indigenous Donyi-Polo practitioners, Christians, and Hindus. The primary languages spoken are Tagin, Galo, Hindi, and English, with Assamese also serving as a regional lingua franca.
