Special Report
These Are the Countries With the Youngest Populations in the World

Published:
Not just the size but also the age of the population in every country is a key factor in determining its social health and economic development.
With this in mind, 24/7 Wall St. has identified the countries with the youngest populations. Most, it turns out, are in sub-Saharan Africa — the notable exception being Afghanistan, a country that has faced a unique set of challenges in the last two decades. (Some of these are among the 29 countries the U.S. government doesn’t want you to visit.)
These countries are typically economically challenged, and lack the safety valve of emigration, as their citizens are rarely welcomed elsewhere. (Many are among the poorest countries in the world.)
Click here to see the countries with the youngest populations in the world.
To identify the countries with the youngest populations in the world, 24/7 Wall St. reviewed the percentage of each country’s population ages 65 and older, total population, and age dependency ratio (the ratio of those older than 65 to the working age population) from the World Bank’s World Development Indicators for 2019.
In addition to their economic struggles, many of the countries on this list are plagued with civil unrest and sometimes outright war, as well as environmental issues such as drought and desertification, and many have suffered substantially from COVID-19. But it would be wrong to see only the challenges they face: Countries with young populations can be vibrant and energetic and quick to seize the opportunities that come their way.
25. Côte d’Ivoire
> Population 14 and under in 2019: 10,727,580
> Percentage of population 14 and under in 2019: 41.7%
> Total population: 25,716,544
> Age dependency ratio, young: 75.3 younger individuals per 100 working-age residents — #26 out of 193 countries
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24. São Tomé and Principe
> Population 14 and under in 2019: 90,639
> Percentage of population 14 and under in 2019: 42.1%
> Total population: 215,056
> Age dependency ratio, young: 76.8 younger individuals per 100 working-age residents — #23 out of 193 countries
23. Guinea-Bissau
> Population 14 and under in 2019: 809,739
> Percentage of population 14 and under in 2019: 42.2%
> Total population: 1,920,922
> Age dependency ratio, young: 76.7 younger individuals per 100 working-age residents — #24 out of 193 countries
22. Zimbabwe
> Population 14 and under in 2019: 6,174,255
> Percentage of population 14 and under in 2019: 42.2%
> Total population: 14,645,468
> Age dependency ratio, young: 76.8 younger individuals per 100 working-age residents — #22 out of 193 countries
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21. Benin
> Population 14 and under in 2019: 4,980,737
> Percentage of population 14 and under in 2019: 42.2%
> Total population: 11,801,151
> Age dependency ratio, young: 77.4 younger individuals per 100 working-age residents — #19 out of 193 countries
20. Cameroon
> Population 14 and under in 2019: 10,961,786
> Percentage of population 14 and under in 2019: 42.4%
> Total population: 25,876,380
> Age dependency ratio, young: 77.1 younger individuals per 100 working-age residents — #21 out of 193 countries
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19. Afghanistan
> Population 14 and under in 2019: 16,157,197
> Percentage of population 14 and under in 2019: 42.5%
> Total population: 38,041,754
> Age dependency ratio, young: 77.3 younger individuals per 100 working-age residents — #20 out of 193 countries
18. Senegal
> Population 14 and under in 2019: 6,981,341
> Percentage of population 14 and under in 2019: 42.8%
> Total population: 16,296,364
> Age dependency ratio, young: 79.2 younger individuals per 100 working-age residents — #18 out of 193 countries
17. Guinea
> Population 14 and under in 2019: 5,549,105
> Percentage of population 14 and under in 2019: 43.4%
> Total population: 12,771,246
> Age dependency ratio, young: 81.1 younger individuals per 100 working-age residents — #16 out of 193 countries
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16. Malawi
> Population 14 and under in 2019: 8,097,672
> Percentage of population 14 and under in 2019: 43.5%
> Total population: 18,628,747
> Age dependency ratio, young: 80.7 younger individuals per 100 working-age residents — #17 out of 193 countries
15. Nigeria
> Population 14 and under in 2019: 87,796,033
> Percentage of population 14 and under in 2019: 43.7%
> Total population: 200,963,599
> Age dependency ratio, young: 81.6 younger individuals per 100 working-age residents — #15 out of 193 countries
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14. Tanzania
> Population 14 and under in 2019: 25,431,803
> Percentage of population 14 and under in 2019: 43.8%
> Total population: 58,005,463
> Age dependency ratio, young: 81.9 younger individuals per 100 working-age residents — #14 out of 193 countries
13. Central African Republic
> Population 14 and under in 2019: 2,084,086
> Percentage of population 14 and under in 2019: 43.9%
> Total population: 4,745,185
> Age dependency ratio, young: 82.5 younger individuals per 100 working-age residents — #13 out of 193 countries
12. The Gambia
> Population 14 and under in 2019: 1,035,975
> Percentage of population 14 and under in 2019: 44.1%
> Total population: 2,347,706
> Age dependency ratio, young: 82.8 younger individuals per 100 working-age residents — #12 out of 193 countries
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11. Mozambique
> Population 14 and under in 2019: 13,472,803
> Percentage of population 14 and under in 2019: 44.4%
> Total population: 30,366,036
> Age dependency ratio, young: 84.1 younger individuals per 100 working-age residents — #10 out of 193 countries
10. Zambia
> Population 14 and under in 2019: 7,941,462
> Percentage of population 14 and under in 2019: 44.5%
> Total population: 17,861,030
> Age dependency ratio, young: 83.2 younger individuals per 100 working-age residents — #11 out of 193 countries
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9. Burkina Faso
> Population 14 and under in 2019: 9,079,149
> Percentage of population 14 and under in 2019: 44.7%
> Total population: 20,321,378
> Age dependency ratio, young: 84.4 younger individuals per 100 working-age residents — #9 out of 193 countries
8. Burundi
> Population 14 and under in 2019: 5,234,958
> Percentage of population 14 and under in 2019: 45.4%
> Total population: 11,530,580
> Age dependency ratio, young: 86.8 younger individuals per 100 working-age residents — #8 out of 193 countries
7. Democratic Republic of the Congo
> Population 14 and under in 2019: 39,924,875
> Percentage of population 14 and under in 2019: 46.0%
> Total population: 86,790,567
> Age dependency ratio, young: 90.2 younger individuals per 100 working-age residents — #6 out of 193 countries
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6. Somalia
> Population 14 and under in 2019: 7,162,343
> Percentage of population 14 and under in 2019: 46.4%
> Total population: 15,442,905
> Age dependency ratio, young: 91.4 younger individuals per 100 working-age residents — #4 out of 193 countries
5. Uganda
> Population 14 and under in 2019: 20,585,368
> Percentage of population 14 and under in 2019: 46.5%
> Total population: 44,269,594
> Age dependency ratio, young: 90.2 younger individuals per 100 working-age residents — #7 out of 193 countries
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4. Angola
> Population 14 and under in 2019: 14,837,597
> Percentage of population 14 and under in 2019: 46.6%
> Total population: 31,825,295
> Age dependency ratio, young: 91.1 younger individuals per 100 working-age residents — #5 out of 193 countries
3. Chad
> Population 14 and under in 2019: 7,466,478
> Percentage of population 14 and under in 2019: 46.8%
> Total population: 15,946,876
> Age dependency ratio, young: 92.4 younger individuals per 100 working-age residents — #3 out of 193 countries
2. Mali
> Population 14 and under in 2019: 9,299,172
> Percentage of population 14 and under in 2019: 47.3%
> Total population: 19,658,031
> Age dependency ratio, young: 94.2 younger individuals per 100 working-age residents — #2 out of 193 countries
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1. Niger
> Population 14 and under in 2019: 11,618,566
> Percentage of population 14 and under in 2019: 49.8%
> Total population: 23,310,715
> Age dependency ratio, young: 104.8 younger individuals per 100 working-age residents — #1 out of 193 countries
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