Population Pyramids of the World from 1950 to 2100

Sierra Leone Population Pyramid 2040

Sierra Leone
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2040
Population: 11,398,400

Year

-5 -1   2040  +1 +5

Country

A B C D E F G H I J K L M N O P Q R S T U V W Y Z
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Summary

Sierra Leone in 2040

In 2040, Sierra Leone is projected to have a population of 11,398,400 people. Ten years before, in 2030, the projected population is 9,694,858 — 17.6% lower.

With a projected median age of 24.6 years, Sierra Leone would have a youth dependency ratio of 49.3 and an old-age dependency ratio of 6.8 per 100 people of working age. The pyramid is expansive: its wide base of young cohorts reflects high fertility and a rapidly growing population.

Ranks #92 of 201 by population Ranks #160 of 201 by median age Ranks #46 of 201 by growth

Share of the population by age group, 1950–2100

Data source: United Nations World Population Prospects, 2024 revision (medium variant) — last updated July 2024.

Key indicators for Sierra Leone
Population
11,398,400
Median age
24.6
0-14 %
31.6%
65+ %
4.3%
Child dependency
49.3
Old-age dependency
6.8
Region
AFRICA
Pyramid shape
Expansive
Population 2050
12,948,325
Population 2100
15,934,257
What is driving the change
Births per woman
Total fertility rate, 1960–2023
1234567
1960Replacement level (2.1)2023 · 3.79

In 2023 women in Sierra Leone had on average 3.79 children, above the replacement level of 2.1.

Source: World Bank World Development Indicators, latest available year.

Life expectancy at birth
Years, 1960–2023
Total Women Men
203040506070
19602023 · 61.8

A child born there in 2023 could expect to live 61.8 years on average (63.5 years for girls, 60.1 for boys).

Source: World Bank World Development Indicators, latest available year.

People supported per 100 workers
Dependency ratios, 1950–2100
Children Older adults
22456890
19502100
Migration to and from Sierra Leone
Where immigrants come from (2024)

49,156 immigrants live in Sierra Leone, 0.6% of the population.

Guinea33,542
Liberia8,462
Nigeria2,024
India892
Ghana874
Where emigrants live (2024)

63,631 people born in Sierra Leone live in other countries.

Senegal15,843
Liberia13,878
Guinea8,065
Nigeria4,679
Australia4,218
Explore
Immigration statistics Origin of migrant stocks map

Source: United Nations International Migrant Stock 2024.

How Sierra Leone compares with its neighbours
Country Population Median age Relative size
Sierra Leone 11,398,400 24.6
Togo 13,121,352 22.7
Mauritania 7,681,909 21.2
Liberia 7,681,688 23.4
Gambia 3,732,798 24.1
Frequently asked questions about Sierra Leone's population
How many people are projected to live in Sierra Leone in 2040?
Sierra Leone is projected to have a population of 11,398,400 in 2040.
Is the population of Sierra Leone increasing or decreasing?
Sierra Leone's population grew 17.6% over the previous ten years, and is projected to reach 12,948,325 by 2050.
How old is the population of Sierra Leone?
The median age in Sierra Leone is 24.6 years — half the population is younger, half older.
How many children and older people live in Sierra Leone?
In Sierra Leone, 31.6% of people are under 15 and 4.3% are 65 or older.
What shape is Sierra Leone's population pyramid, and what does it mean?
Sierra Leone has an expansive pyramid: a wide base of young cohorts reflecting high fertility and continued population growth.

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