Population of Ulan Bator 2023
1,618,231
persons
| Year | Male | Female | Total | Change |
| 2021 | 777,318 | 840,912 | 1,618,231 | +49,681 (+3.17%) |
| 2020 | 754,319 | 814,231 | 1,568,550 | +52,957 (+3.49%) |
| 2019 | 729,428 | 786,165 | 1,515,593 | +38,419 (+2.60%) |
| 2018 | 710,744 | 766,430 | 1,477,174 | +25,464 (+1.75%) |
| 2017 | 698,357 | 753,353 | 1,451,710 | +33,342 (+2.35%) |
| 2016 | 682,325 | 736,042 | 1,418,368 | +38,737 (+2.81%) |
| 2015 | 656,002 | 723,629 | 1,379,631 | +12,123 (+0.89%) |
| 2014 | 646,183 | 721,324 | 1,367,508 | +22,422 (+1.67%) |
| 2013 | 637,719 | 707,367 | 1,345,086 | +213,184 (+18.83%) |
| 2010 | 539,838 | 592,064 | 1,131,902 | +44,806 (+4.12%) |
| 2009 | 523,266 | 563,830 | 1,087,096 | +45,789 (+4.40%) |
| 2008 | 502,157 | 539,150 | 1,041,307 | +28,574 (+2.82%) |
| 2007 | 488,848 | 523,886 | 1,012,733 | +32,953 (+3.36%) |
| 2006 | 473,130 | 506,650 | 979,780 | +32,874 (+3.47%) |
| 2005 | 457,613 | 489,292 | 946,906 | +35,922 (+3.94%) |
| 2004 | 441,443 | 469,541 | 910,984 | +17,547 (+1.96%) |
| 2003 | 433,737 | 459,700 | 893,437 | — |
Population of Ulan Bator is 1,618,231 (for 2021 ).
Ulan Bator (Mongolia) population data is collected from official population sources and publicly available information resources.
- Population density of Ulan Bator is 344.01 persons/sq.km²
- Male population — 777,318
- Female population — 840,912
Mongolia cities by inhabitants