Ulan Bator has a population of 844,818, making it the 1st largest place we list in Mongolia. It is in Ulaanbaatar.
Ulan Bator holds 23.8% of Mongolia's 3,556,798 people.
844,818
population
#1
in Mongolia
Nearby in size
| Place | Region | Population |
|---|---|---|
| Erdenet | Orhon | 97,814 |
| Darhan | Darhan Uul | 83,883 |
| Choibalsan | East Aimak | 44,835 |
Figures are the latest available in GeoNames (CC BY 4.0), which draws on national censuses of varying dates — treat them as recent, not same-year. Country totals are UN World Population Prospects 2024 (medium variant) where the UN lists the country separately; the handful it reports under a parent state keep a GeoNames figure and are marked as such. Sources & method.