Population Pyramids of the World from 1950 to 2100

Sao Tome and Principe Population Pyramid 1970

Sao Tome and Principe
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1970
Population: 77,626

Year

-5 -1   1970  +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

Sao Tome and Principe in 1970

The population of Sao Tome and Principe in 1970 was 77,626. Over the previous ten years the population grew by 14.1%, up from 68,012 in 1960.

With a median age of 16.9 years, Sao Tome and Principe had a youth dependency ratio of 93.7 and an old-age dependency ratio of 9.3 per 100 people of working age. The broad-based, expansive shape of the pyramid points to high fertility and strong population growth.

Ranks #191 of 201 by population Ranks #165 of 201 by median age Ranks #152 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 Sao Tome and Principe
Population
77,626
Median age
16.9
0-14 %
46.2%
65+ %
4.6%
Child dependency
93.7
Old-age dependency
9.3
Region
AFRICA
Pyramid shape
Expansive
Population 2050
365,115
Population 2100
534,014
What is driving the change
Births per woman
Total fertility rate, 1960–2023
1234567
1960Replacement level (2.1)2023 · 3.64

In 2023 women in Sao Tome and Principe had on average 3.64 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
304050607080
19602023 · 69.7

A child born there in 2023 could expect to live 69.7 years on average (73.7 years for girls, 66.2 for boys).

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 Sao Tome and Principe
Where immigrants come from (2024)

1,905 immigrants live in Sao Tome and Principe, 0.8% of the population.

Cabo Verde1,115
Angola292
Gabon192
Equatorial Guinea118
Portugal95
Where emigrants live (2024)

41,433 people born in Sao Tome and Principe live in other countries.

Portugal23,121
Angola7,062
Gabon7,058
Equatorial Guinea1,936
Cabo Verde1,893
Explore
Immigration statistics Origin of migrant stocks map

Source: United Nations International Migrant Stock 2024.

How Sao Tome and Principe compares with its neighbours
Country Population Median age Relative size
Sao Tome and Principe 77,627 16.9
Equatorial Guinea 320,803 20.4
Gabon 595,846 24.2
Congo 1,397,638 17.6
Central African Republic 2,097,505 18.9
Frequently asked questions about Sao Tome and Principe's population
How many people lived in Sao Tome and Principe in 1970?
In 1970, Sao Tome and Principe's population was 77,626.
Is the population of Sao Tome and Principe increasing or decreasing?
Yes, growing: up 14.1% from 1960, with a projected population of 365,115 in 2050.
What is the median age in Sao Tome and Principe?
Sao Tome and Principe's median age is 16.9 years.
What share of Sao Tome and Principe's population is over 65 or under 15?
4.6% of Sao Tome and Principe's population is 65 or older, and 46.2% is under 15.
What type of population pyramid does Sao Tome and Principe have?
Sao Tome and Principe's pyramid is expansive — broad at the bottom, the signature of high birth rates and a growing population.

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