Sunkoshi Rural Municipality (Nepali: सुनकोशी गाउँपालिका) in Okhaldhunga District was formed in March 2017, by merging 5 former VDCs of Katunje, Chyanam, Mulkharka, Sisneri and Balakhu.

[1] The center of this rural municipality is located at Mulkharka.

At the time of the 2011 Nepal census, Sunkoshi Rural Municipality had a population of 18,558.

In terms of ethnicity/caste, 26.6% were Chhetri, 19.1% Tamang, 12.7% Hill Brahmin, 11.5% Magar, 10.7% Rai, 6.3% Newar, 3.4% Kami, 2.4% Damai/Dholi, 2.1% Sunuwar and 5.2% others.

In terms of religion, 69.5% were Hindu, 19.6% Buddhist, 10.5% Kirati, 0.1% Christian and 0.3% others.