The total area of the municipality is 393.54 square kilometres (151.95 sq mi) and the total population of the municipality as of 2011 Nepal census is 10,104 individuals. The municipality is divided into total 11 wards.[2]
The municipality was established on 10 March 2017, when Government of Nepal restricted all old administrative structure and announced 744 local level units as per the new constitution of Nepal 2015.[3][4]
At the time of the 2011 Nepal census, 55.8% of the population in Tripurasundari Municipality spoke Nepali, 22.3% Thangmi, 18.2% Newar, 2.6% Tamang, 0.6% Sherpa and 0.2% Maithili as their first language; 0.3% spoke other languages.