Population Pyramids of the World from 1950 to 2100

Sierra Leone Population Pyramid 1966

Sierra Leone
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1966
Population: 2,514,638

Year

-5 -1   1966  +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 1966

As of 1966, Sierra Leone counted 2,514,638 inhabitants. Over the previous ten years the population grew by 17.1%, up from 2,147,978 in 1956.

The median age was 20.9 years, and for every 100 people of working age (15–64) there were 69.6 children under 15 and 7.2 people aged 65 or over. The broad-based, expansive shape of the pyramid points to high fertility and strong population growth.

Ranks #114 of 201 by population Ranks #62 of 201 by median age Ranks #148 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
2,514,638
Median age
20.9
0-14 %
39.4%
65+ %
4.0%
Child dependency
69.6
Old-age dependency
7.2
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 2,514,638 20.9
Benin 2,814,317 19.5
Togo 1,918,513 17.6
Liberia 1,324,383 19.2
Guinea 3,964,155 20.1
Frequently asked questions about Sierra Leone's population
What was the population of Sierra Leone in 1966?
In 1966, Sierra Leone's population was 2,514,638.
Is Sierra Leone's population growing or shrinking?
Yes, growing: up 17.1% from 1956, with a projected population of 12,948,325 in 2050.
How old is the population of Sierra Leone?
Sierra Leone's median age is 20.9 years.
How many children and older people live in Sierra Leone?
4.0% of Sierra Leone's population is 65 or older, and 39.4% is under 15.
What type of population pyramid does Sierra Leone have?
Sierra Leone's pyramid is expansive — broad at the bottom, the signature of high birth rates and a growing population.

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