Population Pyramids of the World from 1950 to 2100

Sao Tome and Principe Population Pyramid 1978

Sao Tome and Principe
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1978
Population: 93,793

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

Sao Tome and Principe in 1978

The population of Sao Tome and Principe in 1978 was 93,794. A decade earlier, in 1968, the population was 74,765; it has grown by 25.5% since.

With a median age of 17.2 years, Sao Tome and Principe had a youth dependency ratio of 89.9 and an old-age dependency ratio of 8.9 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 #154 of 201 by median age Ranks #96 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
93,794
Median age
17.2
0-14 %
45.2%
65+ %
4.5%
Child dependency
89.9
Old-age dependency
8.9
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 93,794 17.2
Equatorial Guinea 276,531 19.5
Gabon 711,245 21.6
Congo 1,748,089 17.0
Central African Republic 2,397,961 18.5
Frequently asked questions about Sao Tome and Principe's population
What was the population of Sao Tome and Principe in 1978?
In 1978, Sao Tome and Principe's population was 93,794.
Is Sao Tome and Principe's population growing or shrinking?
Yes, growing: up 25.5% from 1968, 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 17.2 years.
How many children and older people live in Sao Tome and Principe?
In Sao Tome and Principe, 45.2% of people are under 15 and 4.5% are 65 or older.
What shape is Sao Tome and Principe's population pyramid, and what does it mean?
Sao Tome and Principe has an expansive pyramid: a wide base of young cohorts reflecting high fertility and continued population growth.

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