The population of Mongolia 2024 is 3.475.540 as of July 1, 7, based on the latest United Nations estimates 2024.
Quick Facts about Mongolia Population 2024:
| Population: | 3.475.540 |
| % of World population: | 0,04%. |
| World Ranking: | 133 |
| % annual change: | 1,22%. |
| Annual change: | 42.540 |
| Net migration (people): | 83 |
| Density (people/Km²): | 2 |
| Sex ratio (Male/100 Female): | 99,4 |
| Fertility rate: | 2,63 |
| Median age: | 26,9 |
| Average life expectancy: | 72,0 |

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According to United Nations estimates, Mongolia have population 3.475.540 people (ranked 133rd) World) as of July 1, 7, increasing 1,22%., respectively 42.540 people compared to 2023. Of which, the population increased naturally. 42.457 and mechanical reduction 83 people.
Population density
Mongolia has an average population density 2 people/km2, on land area 1.553.560 km2. This is the world's least densely populated of any independent country.
Urban population
Mongolia Currently, the urban population ratio is 67% corresponding 2.331.884 people.
Median age and life expectancy
As of 2024, the median age at Mongolia is estimated to be 26,9 and the average life expectancy is 72,0.
Forecast
Population Mongolia is expected to continue to increase until the end of the 21st century. By then, this steppe country will have about 5,26 million people.
Population table Mongolia 2024 and history
| Year | Population | % annual change | Changes by year | Net migration | Median age | Average life expectancy | Sex Ratio (Male/100 Female) | Density (N/Km²) |
| 2024 | 3.475.540 | 1,22%. | 42.540 | 83 | 26,9 | 72,0 | 99,4 | 2,2 |
| 2023 | 3.431.932 | 1,30%. | 44.675 | 0 | 26,8 | 71,7 | 99,6 | 2,2 |
| 2022 | 3.386.015 | 1,39%. | 47.160 | 0 | 26,6 | 71,5 | 99,7 | 2,2 |
| 2021 | 3.339.674 | 1,36%. | 45.522 | 0 | 26,5 | 68,6 | 99,9 | 2,1 |
| 2020 | 3.290.785 | 1,59%. | 52.255 | 0 | 26,4 | 70,0 | 100,1 | 2,1 |
| 2015 | 2.976.526 | 2,17%. | 64.427 | 4.307 | 25,7 | 69,2 | 98,3 | 1,9 |
| 2010 | 2.701.732 | 1,46%. | 39.414 | -6.444 | 24,4 | 67,1 | 98,3 | 1,7 |
| 2005 | 2.563.461 | 0,81%. | 20.680 | -8.924 | 22,7 | 64,8 | 97,4 | 1,6 |
| 2000 | 2.455.182 | 0,91%. | 22.428 | -11.241 | 20,7 | 63,5 | 96,2 | 1,6 |
| 1995 | 2.335.715 | 1,23%. | 28.828 | -7.346 | 19,0 | 60,9 | 96,8 | 1,5 |
| 1990 | 2.164.573 | 1,81%. | 39.109 | -11.881 | 17,9 | 58,8 | 97,3 | 1,4 |
| 1985 | 1.921.514 | 2,51%. | 48.219 | -1.719 | 17,4 | 56,4 | 97,8 | 1,2 |
| 1980 | 1.701.335 | 2,42%. | 41.079 | -1.268 | 16,6 | 55,2 | 97,9 | 1,1 |
| 1975 | 1.488.296 | 2,89%. | 43.041 | 6.556 | 15,9 | 54,3 | 98,0 | 1,0 |
| 1970 | 1.295.272 | 2,61%. | 33.819 | 3.263 | 16,4 | 52,0 | 97,9 | 0,8 |
| 1965 | 1.131.177 | 2,83%. | 31.983 | 5.610 | 19,3 | 48,7 | 98,3 | 0,7 |
| 1960 | 977.595 | 3,18%. | 31.058 | 10.334 | 21,7 | 44,5 | 97,5 | 0,6 |
| 1955 | 848.684 | 1,80%. | 15.272 | 0 | 22,8 | 40,7 | 95,7 | 0,5 |
| 1950 | 781.688 | 1,62%. | 12.691 | 0 | 23,9 | 38,6 | 96,5 | 0,5 |

Population projection table Mongolia
| Year | Population | % annual change | Changes by year | Net migration | Median age | Average life expectancy | Sex Ratio (Male/100 Female) | Density (N/Km²) |
| 2025 | 3.517.100 | 1,15%. | 40.580 | 79 | 26,9 | 72,2 | 99,3 | 2,3 |
| 2030 | 3.705.231 | 0,97%. | 35.911 | 35 | 27,0 | 73,4 | 98,8 | 2,4 |
| 2035 | 3.889.776 | 1,00%. | 38.827 | -320 | 27,3 | 74,6 | 98,3 | 2,5 |
| 2040 | 4.095.554 | 1,04%. | 42.638 | -181 | 28,5 | 75,6 | 98,0 | 2,6 |
| 2045 | 4.308.779 | 0,98%. | 42.097 | 923 | 30,2 | 76,7 | 97,9 | 2,8 |
| 2050 | 4.501.493 | 0,77%. | 34.674 | -253 | 32,0 | 77,7 | 98,0 | 2,9 |
| 2055 | 4.660.484 | 0,61%. | 28.381 | 478 | 33,5 | 78,6 | 98,2 | 3,0 |
| 2060 | 4.792.868 | 0,53%. | 25.291 | 1.252 | 34,7 | 79,5 | 98,4 | 3,1 |
| 2065 | 4.913.694 | 0,50%. | 24.394 | 1.144 | 35,3 | 80,4 | 98,7 | 3,2 |
| 2070 | 5.033.086 | 0,47%. | 23.724 | 740 | 35,8 | 81,3 | 99,1 | 3,2 |
| 2075 | 5.146.741 | 0,43%. | 22.064 | 616 | 36,6 | 82,1 | 99,5 | 3,3 |
| 2080 | 5.251.327 | 0,37%. | 19.376 | 302 | 37,7 | 82,8 | 99,8 | 3,4 |
| 2085 | 5.340.800 | 0,32%. | 16.924 | 217 | 39,0 | 83,6 | 100,1 | 3,4 |
| 2090 | 5.417.909 | 0,26%. | 14.317 | 157 | 40,2 | 84,3 | 100,2 | 3,5 |
| 2095 | 5.479.663 | 0,20%. | 10.998 | 505 | 41,2 | 85,0 | 100,2 | 3,5 |
| 2100 | 5.519.345 | 0,10%. | 5.334 | -172 | 41,9 | 85,7 | 100,3 | 3,5 |
Population of cities in Mongolia
| World ranking | City | Population 2024 | Population 2023 | % change |
| 319 | Ulaanbaatar | 1.699.363 | 1.672.627 | 1,6%. |
Religious population in Mongolia
| Population | ||||||||
| Year | Christianity | Islamic | Hinduism | Buddhism | Folk religion | Judaism | Other religions | Non-religious |
| 2010 | 60.000 | 90.000 | <10.000 | 1.520.000 | 100.000 | <10.000 | <10.000 | 990.000 |
| 2020 | 70.000 | 110.000 | <10.000 | 1.730.000 | 110.000 | <10.000 | <10.000 | 1.160.000 |
| 2030 | 80.000 | 130.000 | <10.000 | 1.900.000 | 120.000 | <10.000 | <10.000 | 1.300.000 |
| 2040 | 90.000 | 150.000 | <10.000 | 2.040.000 | 130.000 | <10.000 | <10.000 | 1.420.000 |
| 2050 | 90.000 | 170.000 | <10.000 | 2.170.000 | 140.000 | <10.000 | <10.000 | 1.540.000 |
| Proportion (%) | ||||||||
| Year | Christianity | Islamic | Hinduism | Buddhism | Folk religion | Judaism | Other religions | Non-religious |
| 2010 | 2,3 | 3,2 | <1,0 | 55,1 | 3,5 | <1,0 | <1,0 | 35,9 |
| 2020 | 2,3 | 3,4 | <1,0 | 54,4 | 3,4 | <1,0 | <1,0 | 36,5 |
| 2030 | 2,3 | 3,6 | <1,0 | 53,9 | 3,4 | <1,0 | <1,0 | 36,8 |
| 2040 | 2,2 | 3,8 | <1,0 | 53,4 | 3,4 | <1,0 | <1,0 | 37,1 |
| 2050 | 2,2 | 4,1 | <1,0 | 52,9 | 3,4 | <1,0 | <1,0 | 37,4 |