Population Pyramids of the World from 1950 to 2100

Guinea-Bissau Population Pyramid 1975

Guinea-Bissau
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1975
Population: 650,966

Year

-5 -1   1975  +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 1975

In 1975, Guinea-Bissau had a total population of 650,966 people. A decade earlier, in 1965, the population was 575,005; it has grown by 13.2% since.

With a median age of 18.8 years, Guinea-Bissau had a youth dependency ratio of 78.2 and an old-age dependency ratio of 8.9 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 #153 of 201 by population Ranks #103 of 201 by median age Ranks #149 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
650,966
Median age
18.8
0-14 %
41.8%
65+ %
4.7%
Child dependency
78.2
Old-age dependency
8.9
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 650,966 18.8
Gambia 606,821 18.9
Cabo Verde 305,847 17.0
Mauritania 1,277,330 17.3
Liberia 1,670,913 18.3
Frequently asked questions about Guinea-Bissau's population
What was the population of Guinea-Bissau in 1975?
Guinea-Bissau had a population of 650,966 in 1975.
Is the population of Guinea-Bissau increasing or decreasing?
Yes, growing: up 13.2% from 1965, with a projected population of 3,438,608 in 2050.
What is the median age in Guinea-Bissau?
The median age in Guinea-Bissau is 18.8 years — half the population is younger, half older.
How many children and older people live in Guinea-Bissau?
4.7% of Guinea-Bissau's population is 65 or older, and 41.8% is under 15.
What shape is Guinea-Bissau's population pyramid, and what does it mean?
Guinea-Bissau has an expansive pyramid: a wide base of young cohorts reflecting high fertility and continued population growth.

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