The Buryat ethnic group makes up 22.8% of the total population (17,196 in 2000, census) concentrated in the north-eastern sums of Dashbalbar, Tsagaan-Ovoo, Bayan-Uul, Bayandun and aimag capital Choibalsan.

The capital, which previously had been called Bayan Tümen, also received the name Choibalsan.

Dornod Province is situated in the easternmost region of Mongolia and shares borders with Russia and China.

[4] The landscape of Dornod is diverse, featuring grasslands, mountains, and rivers.

The Choibalsan International Airport (COQ/ZMCD) has one paved runway, and is served by regular flights to Ulaanbaatar and Hailar, China.