Population Pyramids of the World from 1950 to 2100

Sierra Leone Population Pyramid 1988

Sierra Leone
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1988
Population: 3,934,517

Year

-5 -1   1988  +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 1988

As of 1988, Sierra Leone counted 3,934,518 inhabitants. Over the previous ten years the population grew by 25.1%, up from 3,145,517 in 1978.

The median age was 18.6 years, and for every 100 people of working age (15–64) there were 80.4 children under 15 and 7.5 people aged 65 or over. This is an expansive pyramid — each cohort of children is larger than the one above it, the signature of high birth rates and rapid growth.

Ranks #114 of 201 by population Ranks #127 of 201 by median age Ranks #91 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
3,934,518
Median age
18.6
0-14 %
42.8%
65+ %
4.0%
Child dependency
80.4
Old-age dependency
7.5
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 3,934,518 18.6
Togo 3,769,742 17.1
Benin 4,967,341 16.9
Liberia 2,446,941 17.9
Mauritania 1,855,859 17.1
Frequently asked questions about Sierra Leone's population
What was the population of Sierra Leone in 1988?
Sierra Leone had a population of 3,934,518 in 1988.
Is Sierra Leone's population growing or shrinking?
Sierra Leone's population grew 25.1% over the previous ten years, and is projected to reach 12,948,325 by 2050.
What is the median age in Sierra Leone?
The median age in Sierra Leone is 18.6 years — half the population is younger, half older.
How many children and older people live in Sierra Leone?
4.0% of Sierra Leone's population is 65 or older, and 42.8% is under 15.
What type of population pyramid does Sierra Leone have?
Sierra Leone has an expansive pyramid: a wide base of young cohorts reflecting high fertility and continued population growth.

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