Datastream

Visualizing the World’s Population by Age Group

Published

4 years ago

June 16, 2021

Carmen Ang

World Population by Age

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The Briefing

According to the United Nations, the global median age has increased by 7 years since 1950, from 24 to 31
That said, young people accounted for 33% of the global population in 2020, making them the largest demographic across the globe

Visualizing the World’s Population, By Age Group

An aging population can have far-reaching consequences on a country’s economy.

With this in mind, today’s graphic looks at the age composition of the global population in 2020, based on the latest figures from the United Nations.

The Global Age Composition

Our global population is getting older, largely because of increasing life expectancies and declining birth rates.

In 2020, more than 147 million people around the world were between the ages of 80-99, accounting for 1.9% of the global population.

Age Group	Number of People (2020)	% of Global Population
<20 years	2.6 billion	33.2%
20-39 years	2.3 billion	29.9%
40-59 years	1.8 billion	23.1%
60-79 years	918 million	11.8%
80-99 years	147 million	1.9%
100+ years	0.6 million	0.01%

While that percentage may seem small, that particular demographic accounted for merely 0.05% of the population in 1950, meaning our world has a notably higher percentage of older people than it did 70 years ago.

Why is this significant? An aging population typically means a declining workforce and an increase of people looking to cash in their pensions. This can put pressure on the working class if taxes are raised.

Of course, an aging population can have positive impacts on society as well. For instance, elderly citizens tend to volunteer more than other age groups. And research has shown that older communities have lower crime rates. By 2050, the crime rate in Australia expected to drop by 16% as the country’s population gets older.

To mitigate some of the risks associated with a rapidly aging population, certain countries are working towards more sustainable pension systems, to support aging citizens while taking the stress off the working population.

» Like this? Then you might like this article on The World’s Youngest and Oldest Countries

Where does this data come from?

Source: United Nations World Population Prospects 2019 (accessed Feb 12, 2021)