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Mongolia vs Sierra Leone statistics compared

Updated on by Georank team

Mongolia has a population of 3.52M (ranked 132/197), compared with 8.64M in Sierra Leone (ranked 102/197). Mongolia's land area is 601,740 sq mi versus 27,869 sq mi for Sierra Leone (ranked 18th vs. 116th).

By GDP, Mongolia ranks 121/197 ($23.6B) and Sierra Leone ranks 157/197 ($7.55B). By GDP per capita, Mongolia ranks 107/197 ($6,691), while Sierra Leone ranks 183/197 ($873).

Main facts and rankings

Mongolia Sierra Leone
Population
3599274
8961932
Population rank 132/197 102/197
GDP
$23.6B
2024
$7.55B
2024
GDP rank 121/197 157/197
GDP per capita
$6,691
2024
$873
2024
GDP per capita rank 107/197 183/197
GDP per capita, PPP
$19,098
2024
$3,516
2024
Government debt
$10.5B
2024
$3.25B
2024
Debt-to-GDP ratio
42.6%
2025
44.3%
2025
Government debt per person
$2,969
2024
$376
2024
Government debt per person rank 101/185 174/185
Average annual personal income after taxes
$6,196
2025
$3,438
2025
Land area
601,740 sq mi
2025
27,869 sq mi
2025
Population density
5.86 ppl/mi²
2024
310 ppl/mi²
2024
Fertility rate
2.7
2023
3.79
2023
Median age
27.8 years
2024
20.5 years
2024
Life expectancy
72.2 years
2025
62.2 years
2025

Mongolia and Sierra Leone: Comparison Charts

Mongolia and Sierra Leone economies compared

GDP
Mongolia

Sierra Leone
Year GDP
Mongolia Sierra Leone
1960 - $322,151,961
1961 - $327,978,758
1962 - $342,872,549
1963 - $348,700,980
1964 - $372,011,438
1965 - $359,523,810
1966 - $375,630,252
1967 - $348,895,028
1968 - $329,991,597
1969 - $408,853,541
1970 - $434,584,634
1971 - $419,495,788
1972 - $465,254,682
1973 - $575,471,814
1974 - $648,940,351
1975 - $679,352,876
1976 - $594,810,422
1977 - $692,079,407
1978 - $960,765,043
1979 - $1,109,343,425
1980 $2,101,394,100 $1,100,476,190
1981 $2,310,099,100 $1,114,926,661
1982 $2,552,401,933 $1,294,995,964
1983 $2,725,736,633 $995,278,515
1984 $2,098,734,600 $1,087,450,199
1985 $2,186,505,475 $856,890,459
1986 $2,896,178,867 $490,181,457
1987 $3,020,611,600 $660,106,336
1988 $3,204,461,567 $1,055,083,933
1989 $3,576,966,800 $932,974,420
1990 $2,560,785,660 $649,644,098
1991 $2,379,018,326 $779,981,987
1992 $1,317,611,864 $679,940,814
1993 $768,401,634 $768,867,883
1994 $925,817,092 $911,853,802
1995 $1,452,165,005 $870,740,292
1996 $1,345,719,472 $941,709,423
1997 $1,180,934,203 $850,232,760
1998 $1,124,440,205 $672,368,187
1999 $1,057,408,589 $669,386,624
2000 $1,136,896,124 $635,866,404
2001 $1,267,997,934 $1,681,473,894
2002 $1,396,555,720 $1,933,863,911
2003 $1,595,297,356 $2,142,618,046
2004 $1,992,066,808 $2,237,350,687
2005 $2,523,471,601 $2,545,275,313
2006 $3,414,055,662 $3,263,697,467
2007 $4,234,999,704 $3,632,957,611
2008 $5,623,216,608 $4,157,895,298
2009 $4,583,850,368 $3,953,403,098
2010 $7,189,481,999 $4,262,805,967
2011 $10,409,797,378 $4,861,632,885
2012 $12,292,770,632 $6,141,666,509
2013 $12,582,122,604 $7,502,762,863
2014 $12,226,514,668 $7,686,138,791
2015 $11,619,892,591 $6,788,352,975
2016 $11,181,350,649 $6,084,297,211
2017 $11,480,847,741 $5,749,846,528
2018 $13,178,094,720 $6,390,514,689
2019 $14,206,359,018 $6,526,183,564
2020 $13,312,981,429 $6,693,888,876
2021 $15,286,441,738 $7,173,379,137
2022 $17,146,471,714 $7,124,465,160
2023 $20,325,121,394 $6,411,787,856
2024 $23,586,055,802 $7,547,843,281

Mongolia and Sierra Leone economies compared

GDP per capita
Mongolia

Sierra Leone
Year GDP per capita
Mongolia Sierra Leone
1960 - $142
1961 - $142.3
1962 - $146.4
1963 - $146.4
1964 - $153.4
1965 - $145.6
1966 - $149.4
1967 - $136.2
1968 - $126.4
1969 - $153.6
1970 - $160.2
1971 - $151.8
1972 - $165.3
1973 - $200.7
1974 - $222.2
1975 - $228.4
1976 - $196.4
1977 - $224.3
1978 - $305
1979 - $346
1980 $1,235 $336
1981 $1,325 $334
1982 $1,430 $380
1983 $1,490 $285.9
1984 $1,120 $306
1985 $1,138 $235.5
1986 $1,469 $131.5
1987 $1,493 $172.4
1988 $1,543 $268.2
1989 $1,684 $231.3
1990 $1,220 $154.8
1991 $1,099 $183.7
1992 $608 $163.2
1993 $355 $185
1994 $423 $218.5
1995 $653 $208.4
1996 $596 $224.3
1997 $515 $199.9
1998 $484 $156.5
1999 $449 $155
2000 $476 $143.7
2001 $524 $358
2002 $570 $389
2003 $643 $414
2004 $794 $418
2005 $995 $463
2006 $1,330 $580
2007 $1,628 $632
2008 $2,127 $705
2009 $1,703 $653
2010 $2,625 $685
2011 $3,736 $761
2012 $4,329 $938
2013 $4,340 $1,117
2014 $4,126 $1,118
2015 $3,839 $965
2016 $3,620 $844
2017 $3,646 $779
2018 $4,108 $846
2019 $4,348 $844
2020 $4,001 $846
2021 $4,518 $886
2022 $4,994 $861
2023 $5,839 $758
2024 $6,691 $873

Mongolia vs. Sierra Leone life expectancy calculator

Life expectancy
Mongolia

Sierra Leone
Year Life expectancy, years
Mongolia Sierra Leone
1950 38.6 28.9
1951 39.1 29.3
1952 39.4 29.7
1953 39.8 30.1
1954 40.2 30.5
1955 40.7 30.9
1956 41.4 31.3
1957 40.4 31.8
1958 42.8 32.1
1959 43.7 32.6
1960 44.5 33.1
1961 45.4 33.6
1962 46.3 34.2
1963 47.1 34.7
1964 47.9 35.3
1965 48.7 35.9
1966 49.4 36.6
1967 50.1 37.3
1968 50.8 37.8
1969 51.4 38.2
1970 52 38.6
1971 52.6 39.1
1972 53.1 39.5
1973 53.6 40
1974 54 40.4
1975 54.3 41
1976 54.6 41.4
1977 54.8 41.8
1978 54.9 42.2
1979 55.1 42.5
1980 55.2 42.8
1981 55.4 43.1
1982 55.6 43.3
1983 55.9 43.5
1984 56.1 43.6
1985 56.4 43.6
1986 56.8 43.5
1987 57.1 43.7
1988 57.5 43.8
1989 58.1 43.7
1990 58.8 43.7
1991 59.8 43.3
1992 60.4 43.5
1993 60.8 43.4
1994 60.9 42.8
1995 60.9 42.6
1996 61 43.5
1997 61.4 43.6
1998 62.1 42.7
1999 62.8 42
2000 63.5 44.8
2001 63.8 45.4
2002 64 46.2
2003 64.1 46.8
2004 64.3 47.5
2005 64.8 48.3
2006 65.6 49.5
2007 66.5 50
2008 67.1 50.7
2009 67.2 51.3
2010 67.1 51.9
2011 67.2 52.6
2012 67.6 53.2
2013 68.2 54.1
2014 68.7 54.3
2015 69.2 55.5
2016 69.7 56.9
2017 70.2 57.8
2018 70.6 59.1
2019 70.7 59.6
2020 70 59.7
2021 68.6 60.3
2022 71.5 61.3
2023 71.7 61.8
2024 72 62
2025 72.2 62.2

Mongolia and Sierra Leone population clocks and comparison

Population
Mongolia

Sierra Leone
Year Population
Mongolia Sierra Leone
1960 977,595 2,268,356
1961 1,009,284 2,304,227
1962 1,041,444 2,342,242
1963 1,071,362 2,382,258
1964 1,100,234 2,424,390
1965 1,131,177 2,468,666
1966 1,163,754 2,514,638
1967 1,196,996 2,562,384
1968 1,229,930 2,611,532
1969 1,262,284 2,661,365
1970 1,295,272 2,712,286
1971 1,330,071 2,763,222
1972 1,366,821 2,814,388
1973 1,405,502 2,866,955
1974 1,446,050 2,920,459
1975 1,488,296 2,974,657
1976 1,531,945 3,028,820
1977 1,576,245 3,085,354
1978 1,619,468 3,145,517
1979 1,660,659 3,207,499
1980 1,701,335 3,272,089
1981 1,742,857 3,338,940
1982 1,785,364 3,408,183
1983 1,829,092 3,481,646
1984 1,874,349 3,558,758
1985 1,921,514 3,638,438
1986 1,970,965 3,728,380
1987 2,022,800 3,829,718
1988 2,076,322 3,934,517
1989 2,124,185 4,034,037
1990 2,098,710 4,196,828
1991 2,165,342 4,246,267
1992 2,167,790 4,166,366
1993 2,165,130 4,157,130
1994 2,189,395 4,173,105
1995 2,224,945 4,179,179
1996 2,259,507 4,199,210
1997 2,291,750 4,253,716
1998 2,323,809 4,295,785
1999 2,356,813 4,318,043
2000 2,388,299 4,423,611
2001 2,417,751 4,692,716
2002 2,449,027 4,971,435
2003 2,480,374 5,177,687
2004 2,508,412 5,355,717
2005 2,536,407 5,501,712
2006 2,567,168 5,624,466
2007 2,601,850 5,749,352
2008 2,643,201 5,894,722
2009 2,691,115 6,055,646
2010 2,738,622 6,222,714
2011 2,786,317 6,387,251
2012 2,839,705 6,551,080
2013 2,899,011 6,714,051
2014 2,963,113 6,876,385
2015 3,026,864 7,037,655
2016 3,088,856 7,205,328
2017 3,148,917 7,379,299
2018 3,208,189 7,554,563
2019 3,267,673 7,731,991
2020 3,327,204 7,912,558
2021 3,383,741 8,094,602
2022 3,433,748 8,276,807
2023 3,481,145 8,460,512
2024 3,524,788 8,642,022

Fertility rates in Mongolia and Sierra Leone

Fertility rate
Mongolia

Sierra Leone
Year Fertility rate
Mongolia Sierra Leone
1960 6.82 6.18
1961 6.96 6.21
1962 7.1 6.22
1963 7.24 6.26
1964 7.33 6.29
1965 7.38 6.31
1966 7.41 6.35
1967 7.39 6.38
1968 7.37 6.39
1969 7.34 6.39
1970 7.31 6.41
1971 7.3 6.43
1972 7.28 6.45
1973 7.24 6.47
1974 7.17 6.53
1975 7.07 6.55
1976 6.93 6.55
1977 6.79 6.57
1978 6.62 6.59
1979 6.42 6.58
1980 6.21 6.56
1981 5.98 6.55
1982 5.8 6.56
1983 5.63 6.57
1984 5.45 6.59
1985 5.26 6.59
1986 5.03 6.6
1987 4.83 6.61
1988 4.65 6.59
1989 4.42 6.57
1990 4.5 6.57
1991 4 6.55
1992 3.5 6.56
1993 2.5 6.57
1994 2.7 6.56
1995 2.77 6.56
1996 2.5 6.55
1997 2.4 6.53
1998 2.3 6.5
1999 2.3 6.42
2000 2.2 6.36
2001 2.2 6.31
2002 2.1 6.23
2003 2 6.09
2004 2 5.92
2005 2 5.81
2006 2.1 5.74
2007 2.3 5.64
2008 2.6 5.56
2009 2.8 5.45
2010 2.4 5.33
2011 2.6 5.21
2012 2.7 5.06
2013 3 4.87
2014 3.1 4.7
2015 3 4.55
2016 3 4.47
2017 2.8 4.39
2018 2.9 4.29
2019 3 4.19
2020 2.9 4.08
2021 2.8 3.98
2022 2.7 3.88
2023 2.7 3.79

Mongolia and Sierra Leone demographics compared

Median age
Mongolia

Sierra Leone
Year Median age, years
Mongolia Sierra Leone
1960 22.8 21.1
1961 22.5 21.1
1962 22.2 21.1
1963 21.7 21
1964 21 21
1965 20.3 20.9
1966 19.6 20.9
1967 19 20.8
1968 18.4 20.7
1969 18 20.6
1970 17.7 20.4
1971 17.5 20.2
1972 17.3 20.1
1973 17.2 19.9
1974 17.2 19.8
1975 17.2 19.6
1976 17.2 19.5
1977 17.3 19.4
1978 17.4 19.3
1979 17.5 19.2
1980 17.7 19.1
1981 17.9 19.1
1982 18 19
1983 18.2 18.9
1984 18.4 18.9
1985 18.5 18.8
1986 18.6 18.7
1987 18.7 18.7
1988 18.7 18.6
1989 18.8 18.6
1990 19 18.5
1991 19.1 18.5
1992 19.3 18.4
1993 19.5 18.4
1994 19.8 18.3
1995 20 18.2
1996 20.4 18.2
1997 20.7 18.1
1998 21 18.1
1999 21.4 18
2000 21.8 18
2001 22.2 18
2002 22.6 17.9
2003 23 17.9
2004 23.4 17.9
2005 23.8 18
2006 24.2 18
2007 24.5 18
2008 24.8 18.1
2009 25.1 18.1
2010 25.4 18.2
2011 25.8 18.3
2012 26.1 18.4
2013 26.3 18.5
2014 26.5 18.6
2015 26.7 18.7
2016 26.9 18.9
2017 27 19.1
2018 27.1 19.2
2019 27.2 19.4
2020 27.3 19.6
2021 27.4 19.8
2022 27.6 20
2023 27.7 20.3
2024 27.8 20.5

Interactive Maps

Use the buttons below to switch between world maps comparing statistics for Mongolia and Sierra Leone.

GDP per capita

GDP

Life expectancy

Population

Population density

Fertility rate

Median age

Land area

National statistics comparison

Finance

Mongolia Sierra Leone
GNI, Atlas method
$18.9B
2024
$7.26B
2024
Government expenditure, % of GDP
36.6%
2025
17.7%
2025
Education expenditure, % of GDP
3.66%
2023
2.62%
2023
Military expenditure, % of GDP
0.6%
2023
0.56%
2023
Armed forces personnel
18,000
2020
9,000
2020
Deficit/surplus, % of GDP
+0.95%
2025
-4.2%
2025
Unemployment rate
5.18%
2023
3.19%
2018
Services, % of GDP
44.2%
2024
44.8%
2024
Industry, % of GDP
38.1%
2024
27.3%
2024
Economic freedom index
62.6
2025
48
2025
Income share by richest 10%
24.6%
2022
29.4%
2018
Income share by poorest 10%
3.4%
2022
3.4%
2018
Total reserves including gold
$5.51B
2024
$433M
2024
Personal remittances received
$528M
2024
$322M
2024
International tourist arrivals
66,900
2020
71,000
2019
International tourism as share of exports
0.64%
2020
5.49%
2018
Banked people share
98.3%
2024
38.6%
2024

Energy

Mongolia Sierra Leone
Energy use, kg of oil equivalent per capita
1,891 kg
2022
n/a
GDP PPP per kg equivalent of energy use
$8.68
2022
n/a
Carbon dioxide (CO2) emissions
28.1 megatons
2023
1.07 megatons
2023
CO2 emissions per capita
8.08 tons
2023
0.13 tons
2023
Fossil fuel energy use share
94.7%
2022
n/a
Renewable energy use share
3%
2021
71.6%
2022
Alternative and nuclear energy use share
1.01%
2022
n/a
Net energy imports use share
-226.4%
2022
n/a
Electric power consumption per capita
2,546 kWh
2022
n/a
Renewable electricity output share
10.9%
2021
75.3%
2021
Hydroelectric share
0.81%
2022
70.5%
2021
Nuclear share
0%
2021
0%
2021
Electricity access
100%
2023
35.5%
2023

Society

Mongolia Sierra Leone
% of world population
0.04%
2024
0.11%
2024
Annual migration change
+83
2024
-11,000
2024
Urban population
69.3%
2024
44.8%
2024
Male:Female ratio
50:50
2024
50:50
2024
Average male height
5.6 ft
2025
5.46 ft
2025
Average female height
5.25 ft
2025
5.16 ft
2025
Quality of life index
47.6
2025
30.5
2025
Corruption Perceptions Index
33
2024
33
2024
Higher education index
42
2025
16
2025
Homicides per 100K people
5.92
2023
2.14
2020
Road traffic mortality per 100K people
21
2019
33
2019
Visa free countries
77
2025
68
2025
Adult literacy rate
98.6%
2023
48.6%
2022
English speaking
1%
2025
83.5%
2023
People using the Internet
83%
2023
20.6%
2023

Health

Mongolia Sierra Leone
Government health expenditure per capita
$448
2022
$39.3
2022
Out-of-pocket health expenditure per capita
$174.6
2022
$20.7
2022
Life expectancy
72.2 years
2025
62.2 years
2025
Foreign aid share of health expenditure
24.5%
2022
28%
2022
Physicians per 1,000 people
3.87
2021
0.04
2022
Age at first childbirth
20.5 years
2025
19.6 years
2025
Maternal mortality per 100K births
41
2023
354
2023
Mortality rate before reaching 5 years of age, per 1,000 live births
13.6
2023
94.3
2023
Obesity rate
24.8%
2022
7.32%
2022
Diabetes prevalence
10.3%
2024
4.8%
2024
Air quality index
24
2025
16
2025
Tobacco use prevalence
29.5%
2022
12.9%
2022
Pure alcohol consumption per capita
7.68 liters
2020
0.29 liters
2020

Territory

Mongolia Sierra Leone
% of world land
1.05%
2025
0.05%
2025
Land area per capita
170,717 sq mi
2024
3,225 sq mi
2024
Agricultural land area
414,933 sq mi
2025
15,247 sq mi
2025
Forest area
54,709 sq mi
2025
9,559 sq mi
2025
Roads length
70,339 mi
2017
7,270 mi
2015

In-depth comparisons

Facts comparisons

Facts vs Mongolia vs Sierra Leone
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