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The World Population Pyramid (1950-2100)

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Visualizing the World's Population Pyramid (1950-2100)

The world is in the midst of a notable period of demographic transition.

Back in the 1960s, global population growth peaked at a 2.1% annual rate, but since then it has been on a historic downtrend.

In fact, according to the most commonly cited United Nations projection, which is based on a medium fertility rate scenario, it’s expected that annual population growth could drop all the way to 0.1% by the end of the 21st century.

Visualizing a Demographic Transition

Today’s powerful charts come from Our World in Data by economist Max Roser, and they show how global demographics will shift over the next 80 years.

Below you can see one major catalyst of this change, which is the peaking (and then falling) population growth rate:

Growth in world population from 1950 to 2100

Why has population growth been dropping since the 1960s?

A variety of explanations factor into this, including:

  • Falling fertility rates:
    Birth rates tend to fall as nations get richer. First, this happened in the developed world, but as the century progresses this phenomenon will impact more and more developing nations.
  • Government policy:
    China’s “One Child Policy” in particular had an effect on global population growth, and the aftermath of the policy is still contributing to a shrinking Chinese population over the long term.
  • Rural flight
    Urban dwellers tend to have fewer babies—and by 2050, there will be an additional 2.5 billion people living in cities globally.

Fewer births combined with improving healthcare—especially in developing nations—will dramatically alter the composition of the world population pyramid, creating both economic opportunities and challenges in the process.

The Changing World Population Pyramid

The following graphic charts how these changes affect the makeup of the world’s population.

World Population Pyramid transition

Over time, the shape of the world population pyramid is expected to shift from Stage 1 (high birth rates, high death rates) to something closer to Stage 4 (low birth rates, low death rates).

As the population distribution skews older, here is how population size and global median age will change:

YearGlobal Population SizeMedian Age
19502.6 billion23.6 years
20187.6 billion30.0 years
2050p9.7 billion36.1 years
2075p10.7 billion39.0 years
2100p11.2 billion41.6 years

Global median age is projected to surpass 40 years by the end of the century, and it will be considerably higher in many Western nations, especially in Japan and Europe.

With the future demographic composition looking very different than today, it will be fascinating to see how the economy responds to these potential tailwinds. Further, it will be even more interesting to see what role automation will play as the old-age dependency ratio hits historic highs.

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This article was published as a part of Visual Capitalist's Creator Program, which features data-driven visuals from some of our favorite Creators around the world.

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Demographics

Ranked: Countries Where Youth are the Most Unhappy, Relative to Older Generations

Conventional wisdom says that young adults (those below 30) tend to be the happiest demographic—but this is not true for these countries.

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Countries with the Biggest Happiness Gaps Between Generations

This was originally posted on our Voronoi app. Download the app for free on iOS or Android and discover incredible data-driven charts from a variety of trusted sources.

“They say a person needs just three things to be truly happy in this world: someone to love, something to do, and something to hope for.” — Tom Bodett

Measuring happiness is tricky business, more so when taking into account how different regions, cultures, and faiths define it. Nevertheless, the World Happiness Report attempts to distill being happy into a single score out of 10, and then ranks countries by their average score.

We’ve visualized the high-level findings from the latest happiness report in this series of maps. However, the report also dives deeper into other significant trends in the data, such as a growing disparity in happiness between age groups within countries themselves.

In the chart above, we list countries by the biggest gaps in happiness ranks between young adults (<30) and older adults (60+). A higher number indicates a larger gap, and that the youth are far unhappier than their older counterparts.

Where are Youth Unhappier than Older Adults?

Mauritius ranks first on this list, with a massive 57 place gap between older adult and youth happiness. The 1.26 million-inhabited island nation briefly reached high income status in 2020, but the pandemic hit hard, hurting its key tourism sector, and affecting jobs.

The country’s youth unemployment rate spiked to close to 25% that year, but has since been on the decline. Like residents on many similarly-populated islands, the younger demographic often moves abroad in search of more opportunities.

RankCountryYouth Happiness RankOlder Adult
Happiness Rank
Happiness Gap
1🇲🇺 Mauritius852857
2🇺🇸 U.S.621052
3🇨🇦 Canada58850
4🇺🇿 Uzbekistan712249
5🇨🇳 China793049
6🇯🇵 Japan733637
7🇲🇳 Mongolia865333
8🇩🇿 Algeria936231
9🇱🇾 Libya805030
10🇸🇬 Singapore542628
11🇰🇿 Kazakhstan694227
12🇵🇭 Philippines704327
13🇱🇦 Laos1047727
14🇩🇪 Germany472126
15🇪🇸 Spain552926
16🇲🇹 Malta573126
17🇧🇭 Bahrain775126
18🇰🇬 Kyrgyzstan815526
19🇲🇷 Mauritania1199326
20🇹🇩 Chad1209426

Conventional wisdom says, and data somewhat correlates, that young adults (those below 30) tend to be the happiest demographic. Happiness then decreases through middle age and starts increasing around 60. However, the above countries are digressing from the pattern, with older generations being much happier than young adults.

That older generations are happier, by itself, is not a bad thing. However, that younger adults are so much unhappier in the same country can point to several unique stresses that those aged below 30 are facing.

For example, in the U.S. and Canada—both near the top of this list—many young adults feel like they have been priced out of owning a home: a once key metric of success.

Climate anxieties are also high, with worries about the future of the world they’ll inhabit. Finally, persistent economic inequities are also weighing on the younger generation, with many in that cohort feeling like they will never be able to afford to retire.

All of this comes alongside a rising loneliness epidemic, where those aged 18–25 report much higher rates of loneliness than the general population.

Where does this data come from?

Source: The World Happiness Report which leverages data from the Gallup World Poll.

Methodology: A nationally representative group of approximately 1,000 people per country are asked to evaluate their life on a scale of 0–10. Scores are averaged across generations per country over three years. Countries are ranked by their scores out of 10.

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