World Population Pyramid 1951

World
1951
Population: 2,536,927,035

Year

-5 -1   1951  +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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World in 1951

As of 1951, the World counted 2,536,927,035 inhabitants. Half of the population was younger than 23.2 years; 35.0% were children under 15 and 5.0% were 65 or older.

The pyramid is expansive: its wide base of young cohorts reflects high fertility and a rapidly growing population.

Share of the population by age group, 1950–2100

Data source: United Nations World Population Prospects, 2024 revision (medium variant) — last updated July 2024.

Population
2,536,927,035
Median age
23.2
0-14 %
35.0%
65+ %
5.0%
Child dependency
58.3
Old-age dependency
8.4
Pyramid shape
Births per woman

The World Bank does not publish this indicator for regions or continents.

Life expectancy at birth

The World Bank does not publish this indicator for regions or continents.

People supported per 100 workers
Dependency ratios, 1950–2100
Children Older adults
18355270
19502100
Where immigrants come from (2024)

281,808,905 immigrants live in World.

India18,533,845
China11,701,619
Mexico11,596,529
Ukraine9,769,216
Russian Federation9,134,094
Where emigrants live (2024)

303,611,211 people born in World live in other countries.

United States of America52,375,047
Germany16,750,084
Saudi Arabia13,683,841
United Kingdom11,845,479
France9,186,757
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Immigration statistics

Source: United Nations International Migrant Stock 2024.

What was the population of the World in 1951?
In 1951, the World's population was 2,536,927,035.
What is the median age in the World?
The median age in the World is 23.2 years — half the population is younger, half older.
How many children and older people live in the World?
In the World, 35.0% of people are under 15 and 5.0% are 65 or older.
What shape is the World's population pyramid, and what does it mean?
The World's pyramid is expansive — broad at the bottom, the signature of high birth rates and a growing population.

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