Tripurasundari is a rural municipality located within the Dhading District of the Bagmati Province of Nepal. The rural municipality spans , with a total population of 22,960 according to a 2011 Nepal census.
On March 10, 2017, the Government of Nepal restructured the local level bodies into 753 new local level structures. The previous Salyantar, Mulpani, Salyankot, Aginchok and Tripureshwar VDCs were merged to form Tripurasundari. Tripurasundari is divided into 7 wards, with Salyantar declared the administrative center of the rural municipality.
At the time of the 2011 Nepal census, Tripurasundari Rural Municipality had a population of 22,992. Of these, 95.2% spoke Nepali, 1.3% Tamang, 1.2% Kumhali, 0.6% Ghale, 0.6% Gurung, 0.5% Newar, 0.1% Bhojpuri, 0.1% Hindi, 0.1% Magar, 0.1% Urdu and 0.1% other languages as their first language.
In terms of ethnicity/caste, 26.5% were Chhetri, 13.2% Hill Brahmin, 12.2% Magar, 9.9% Newar, 9.8% Kumal, 6.3% Sarki, 4.2% Kami, 3.6% Damai/Dholi, 3.5% Darai, 3.1% Sanyasi/Dasnami, 2.5% Thakuri, 2.0% Gurung, 1.5% Tamang, 0.8% Ghale, 0.3% Musalman, 0.2% Majhi, 0.1% Rai, 0.1% Terai Brahmin and 0.3% others.
In terms of religion, 96.5% were Hindu, 1.6% Christian, 1.4% Buddhist, 0.3% Muslim and 0.2% others.
In terms of literacy, 64.0% could both read and write, 2.6% could read but not write and 33.4% could neither read nor write.