Population Pyramids of the World from 1950 to 2100

Sao Tome and Principe Population Pyramid 1975

Sao Tome and Principe
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1975
Population: 86,708

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

Sao Tome and Principe in 1975

In 1975, Sao Tome and Principe had a total population of 86,708 people. That is 21.0% more than in 1965, when the population stood at 71,680.

With a median age of 17.1 years, Sao Tome and Principe had a youth dependency ratio of 91.3 and an old-age dependency ratio of 9.2 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 #157 of 201 by median age Ranks #122 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
86,708
Median age
17.1
0-14 %
45.5%
65+ %
4.6%
Child dependency
91.3
Old-age dependency
9.2
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 86,708 17.1
Equatorial Guinea 287,902 19.9
Gabon 662,197 22.5
Congo 1,627,032 17.2
Central African Republic 2,313,917 18.5
Frequently asked questions about Sao Tome and Principe's population
What was the population of Sao Tome and Principe in 1975?
Sao Tome and Principe had a population of 86,708 in 1975.
Is the population of Sao Tome and Principe increasing or decreasing?
Sao Tome and Principe's population grew 21.0% over the previous ten years, and is projected to reach 365,115 by 2050.
What is the median age in Sao Tome and Principe?
The median age in Sao Tome and Principe is 17.1 years — half the population is younger, half older.
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 45.5% is under 15.
What shape is Sao Tome and Principe's population pyramid, and what does it mean?
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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