Population Pyramids of the World from 1950 to 2100

Guinea-Bissau Population Pyramid 1978

Guinea-Bissau
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1978
Population: 791,694

Year

-5 -1   1978  +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

Guinea-Bissau in 1978

In 1978, Guinea-Bissau had a total population of 791,695 people. Over the previous ten years the population grew by 36.9%, up from 578,170 in 1968.

Half of the population was younger than 17.8 years; 44.8% were children under 15 and 4.8% were 65 or older. The broad-based, expansive shape of the pyramid points to high fertility and strong population growth.

Ranks #151 of 201 by population Ranks #140 of 201 by median age Ranks #27 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 Guinea-Bissau
Population
791,695
Median age
17.8
0-14 %
44.8%
65+ %
4.8%
Child dependency
88.8
Old-age dependency
9.5
Region
AFRICA
Pyramid shape
Expansive
Population 2050
3,438,608
Population 2100
4,665,485
What is driving the change
Births per woman
Total fertility rate, 1960–2023
1234567
1960Replacement level (2.1)2023 · 3.84

In 2023 women in Guinea-Bissau had on average 3.84 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 · 64.1

Life expectancy at birth was 64.1 years in 2023: 66.4 for women and 61.7 for men.

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

People supported per 100 workers
Dependency ratios, 1950–2100
Children Older adults
255075100
19502100
Migration to and from Guinea-Bissau
Where immigrants come from (2024)

14,081 immigrants live in Guinea-Bissau, 0.6% of the population.

Senegal7,634
Guinea3,032
Gambia917
Liberia532
Portugal505
Where emigrants live (2024)

103,999 people born in Guinea-Bissau live in other countries.

Portugal36,682
Senegal31,321
Gambia15,119
Cabo Verde5,576
Guinea4,217
Explore
Immigration statistics Origin of migrant stocks map

Source: United Nations International Migrant Stock 2024.

How Guinea-Bissau compares with its neighbours
Country Population Median age Relative size
Guinea-Bissau 791,695 17.8
Gambia 667,103 18.5
Cabo Verde 316,148 16.4
Mauritania 1,392,713 17.1
Liberia 1,818,248 18.1
Frequently asked questions about Guinea-Bissau's population
What was the population of Guinea-Bissau in 1978?
Guinea-Bissau had a population of 791,695 in 1978.
Is the population of Guinea-Bissau increasing or decreasing?
Yes, growing: up 36.9% from 1968, with a projected population of 3,438,608 in 2050.
What is the median age in Guinea-Bissau?
Guinea-Bissau's median age is 17.8 years.
How many children and older people live in Guinea-Bissau?
4.8% of Guinea-Bissau's population is 65 or older, and 44.8% is under 15.
What type of population pyramid does Guinea-Bissau have?
Guinea-Bissau's pyramid is expansive — broad at the bottom, the signature of high birth rates and a growing population.

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