Population Pyramids of the World from 1950 to 2100

Sierra Leone Population Pyramid 1997

Sierra Leone
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1997
Population: 4,253,715

Year

-5 -1   1997  +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 1997

The population of Sierra Leone in 1997 was 4,253,715. That is 11.1% more than in 1987, when the population stood at 3,829,718.

With a median age of 18.1 years, Sierra Leone had a youth dependency ratio of 82.5 and an old-age dependency ratio of 6.9 per 100 people of working age. 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 #118 of 201 by population Ranks #146 of 201 by median age Ranks #135 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
4,253,715
Median age
18.1
0-14 %
43.5%
65+ %
3.7%
Child dependency
82.5
Old-age dependency
6.9
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 4,253,716 18.1
Togo 4,725,030 18.0
Liberia 2,412,989 18.1
Mauritania 2,411,306 17.5
Benin 6,583,366 17.0
Frequently asked questions about Sierra Leone's population
How many people lived in Sierra Leone in 1997?
In 1997, Sierra Leone's population was 4,253,715.
Is the population of Sierra Leone increasing or decreasing?
Sierra Leone's population grew 11.1% over the previous ten years, and is projected to reach 12,948,325 by 2050.
What is the median age in Sierra Leone?
Sierra Leone's median age is 18.1 years.
What share of Sierra Leone's population is over 65 or under 15?
3.7% of Sierra Leone's population is 65 or older, and 43.5% is under 15.
What shape is Sierra Leone's population pyramid, and what does it mean?
Sierra Leone's pyramid is expansive — broad at the bottom, the signature of high birth rates and a growing population.

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Immigration statistics per countries
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Population Growth Map per Year