Mongolia: cities by population
Mongolia has a population of 3,556,798 (UN estimate, 2026), with Ulaanbaatar as its capital. The 50 largest of its 52 recorded towns and cities, ranked.
+45%
since 2000 (2,455,182)
+27%
projected by 2050 (4,501,493)
2
people per km²
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.
Largest cities in Mongolia
| # | Place | Region | Population |
|---|---|---|---|
| 1 | Ulan Bator | Ulaanbaatar | 844,818 |
| 2 | Erdenet | Orhon | 97,814 |
| 3 | Darhan | Darhan Uul | 83,883 |
| 4 | Choibalsan | East Aimak | 44,835 |
| 5 | Nalayh | Ulaanbaatar | 39,579 |
| 6 | Mörön | Khövsgöl Province | 39,404 |
| 7 | Bayanhongor | Bayankhongor | 30,931 |
| 8 | Ulaangom | Uvs Province | 30,092 |
| 9 | Khovd | Hovd | 29,800 |
| 10 | Arvayheer | Övörhangay | 29,420 |
| 11 | Ölgii | Bayan-Ölgii Province | 28,400 |
| 12 | Bogd | Övörhangay | 27,924 |
| 13 | Dalandzadgad | Ömnögovĭ | 24,863 |
| 14 | Sühbaatar | Selenge Province | 22,741 |
| 15 | Undurkhaan | Hentiy | 22,741 |
| 16 | Tsetserleg | Arkhangai Province | 21,620 |
| 17 | Saynshand | East Gobi Aymag | 19,891 |
| 18 | Dzüünharaa | Selenge Province | 18,830 |
| 19 | Baruun-Urt | Sühbaatar | 18,190 |
| 20 | Altai | Govi-Altai Province | 17,617 |
| 21 | Bulgan | Bulgan | 17,348 |
| 22 | Dzuunmod | Central Aimak | 16,953 |
| 23 | Zuunmod | Central Aimak | 16,953 |
| 24 | Uliastay | Dzabkhan | 16,265 |
| 25 | Mandalgovi | Middle Govĭ | 12,339 |
| 26 | Zamiin Uud | East Gobi Aymag | 11,527 |
| 27 | Choyr | Govĭ-Sumber | 10,434 |
| 28 | Choyr | Govĭ-Sumber | 10,434 |
| 29 | Tosontsengel | Dzabkhan | 9,526 |
| 30 | Kharkhorin | Övörhangay | 8,977 |
| 31 | Bor-Öndör | Hentiy | 8,897 |
| 32 | Tsengel | Khövsgöl Province | 8,348 |
| 33 | Sharïngol | Selenge Province | 7,795 |
| 34 | Hongor | Darhan Uul | 5,874 |
| 35 | Jargalant | Bayan-Ölgii Province | 5,137 |
| 36 | Sört | Bulgan | 4,700 |
| 37 | Hutag | Bulgan | 4,591 |
| 38 | Berh | Hentiy | 3,890 |
| 39 | Jargalant | Orhon | 3,417 |
| 40 | Orhon | Darhan Uul | 3,245 |
| 41 | Halhgol | East Aimak | 3,203 |
| 42 | Sharga | Bulgan | 3,048 |
| 43 | Horiult | Bayankhongor | 2,900 |
| 44 | Ergel | East Gobi Aymag | 2,853 |
| 45 | Dashinchilling | Bulgan | 2,300 |
| 46 | Turt | Khövsgöl Province | 2,140 |
| 47 | Argalant | Central Aimak | 1,955 |
| 48 | Hongor | East Gobi Aymag | 1,781 |
| 49 | Bürenhayrhan | Hovd | 1,768 |
| 50 | Ulaanhudag | Central Aimak | 1,500 |
Twenty years earlier: Mongolia in the 2005 World Gazetteer — population then 2,535,013.
Common questions
What is the population of Mongolia?
Mongolia has a population of 3,556,798, the UN World Population Prospects estimate for 2026. The UN's medium-variant projection for 2050 is 4,501,493 — a forecast, not a measurement.
What is the capital of Mongolia?
Ulaanbaatar. The largest place we record there is Ulan Bator, with 844,818 people.