Mongolia Population Pyramid 2045
Mongolia in 2045
By 2045, the population of Mongolia is expected to reach 4,308,780. Ten years before, in 2035, the projected population is 3,889,776 — 10.8% lower.
The median age is projected at 31.3 years, with 35.4 children under 15 and 17.2 people aged 65 or over for every 100 people of working age (15–64). This is a stationary pyramid — similar numbers in each age group up to the older cohorts, the signature of near-replacement fertility.
Data source: United Nations World Population Prospects, 2024 revision (medium variant) — last updated July 2024.
The fertility rate of Mongolia was 2.70 births per woman in 2023, above the 2.1 needed to replace each generation.
Source: World Bank World Development Indicators, latest available year.
Life expectancy at birth was 72.1 years in 2023: 76.8 for women and 67.6 for men.
Source: World Bank World Development Indicators, latest available year.
21,818 immigrants live in Mongolia, 0.6% of the population.
| China | 12,085 |
| Russian Federation | 3,420 |
| Republic of Korea | 2,103 |
| United States of America | 906 |
| Dem. People's Republic of Korea | 718 |
175,596 people born in Mongolia live in other countries.
| Kazakhstan | 75,801 |
| Republic of Korea | 45,698 |
| Japan | 20,179 |
| Australia | 11,188 |
| Sweden | 6,866 |
Source: United Nations International Migrant Stock 2024.
| Country | Population | Median age | Relative size |
|---|---|---|---|
| Mongolia | 4,308,780 | 31.3 | |
| China, Hong Kong SAR | 6,498,690 | 60.3 | |
| China, Macao SAR | 688,799 | 54.4 | |
| Taiwan | 20,399,190 | 55.7 | |
| Dem. People's Republic of Korea | 26,210,203 | 43.3 |





