The estimated population of Dharmanagar is 32,912 inhabitants in 2006. Males constitute 51% of the population and the female sconstitute 49% of the population. 9% of the population is less than six years of age. Dharmanagar has an average literacy rate of 85%, which is higher than the national average of 59.5%. The male literacy rate is 87% and, female literacy rate is 83%.
The town is embellished with beautiful and important temples such as the Hari Mandir and Kali Bari Mandir. The Bahai Temple offers serene ambience for meditation. The scenic beauty of the hilly tea villages such as East Kameshwar , Ganganagar and Halflong is awesome.