3D Map: The World's Largest Population Density Centers
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3D Map: The World’s Largest Population Density Centers

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Mapping 3d global population density spikes

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A 3D Look at the Largest Population Density Centers

It can be difficult to comprehend the true sizes of megacities, or the global spread of 8 billion people, but this series of population density maps makes the picture abundantly clear.

Created using the EU’s population density data and mapping tool Aerialod by Alasdair Rae, the 3D-rendered maps highlight demographic trends and geographic constraints.

Though they appear topographical and even resemble urban areas, the maps visualize population density in squares. The height of each bar represents the number of people living in that specific square, with the global map displaying 2km x 2km squares and subsequent maps displaying 1km x 1km squares.

Each region and country tells its own demographic story, but the largest population clusters are especially illuminating.

China vs U.S. — Clusters vs Sprawl

population density spikes around China

Click here to view the high resolution version.

Zooming into the most populated country in the world, China and its surrounding neighbors demonstrate massive clusters of urbanization.

Most people are familiar with the large density centers around Hong Kong, Guangzhou, and Shanghai, but the concentration in central China is surprising. The cities of Chengdu and Chonqing, in the Sichuan Basin, are part of a massive population center.

Interestingly, more than 93% of China’s population lives in the Eastern half of the country. It’s a similar story in neighboring South Korea and Taiwan, where the population is clustered along the west coasts.

population density spikes in the united states

Click here to view the high resolution version.

The U.S. also has large population clusters along the coasts, but far more sprawl compared to its Asian counterparts. Though the Boston-Washington corridor is home to over 50 million residents, major centers spread out the population across the South and the Midwest.

Clearly visible are clusters in Florida (and not exclusively focused around Miami like some might believe), Illinois, Georgia, and Texas. The population is sparse in the West as expected, but California’s Los Angeles and Bay Area metros make up for the discrepancy and are just behind New York City’s density spikes in height.

India & Southeast Asia — Massive Density in Tight Areas

population density spikes around India

Click here to view the high resolution version.

At 1.38 billion people, India’s population is just behind China’s in terms of size. However, this sizable population fits into an area just one-third of China’s total land area, with the above map demonstrating what the same amount of people looks like in a smaller region.

On one hand, you still have clear clusters, such as in Mumbai, New Delhi, Kolkata, and Bangladesh’s Dhaka. On the other, there is a finite amount of room for a massive amount of people, so those density “spikes” are more like density “peaks” with the entire country covered in high density bars.

However, we can still see geographic trends. India’s population is more densely focused in the North before fading into the Himalayas. Bangladesh is equally if not more densely populated, with the exception of the protected Sundarbans mangrove forest along the coast. And Pakistan’s population seen in the distance is clustered along the Indus River.

population density spikes in Southeast Asia

Click here to view the high resolution version.

Geographic constraints have always been the biggest deciding factor when it comes to population density, and nowhere is this more apparent than Southeast Asia.

Take Indonesia, the fourth largest country by population. Despite spanning across many islands, more than half of the country’s 269 million inhabitants are clustered on the single island of Java. The metros of Jakarta and Surabaya have experienced massive growth, but spreading that growth across oceans to entirely new islands (covered by rainforests) is a tall order.

When the distance is smaller, that cross-water growth is more likely to occur. Nearby in the Philippines, more than 100 million people have densely populated a series of islands no bigger than the state of Arizona.

Indeed, despite being one of the most populated areas in the world, each country in Southeast Asia has had its own growing problems. Some are limited by space (Singapore, Philippines), while others are limited by forests (Thailand, Vietnam).

A World of Different Density Pictures

Though the above maps cover the five most populated countries on Earth, accounting for nearly half of the world’s population, they only show a small part of the global picture.

As the full global density map at the top of the page highlights, the population patterns can accurately illustrate some geographic patterns and constraints, while others need further exploration.

For example, the map clearly gives an outline of Africa and the sparse area that makes up the Sahara Desert. At the same time, landmasses like Australia and New Zealand are almost invisible save for a few clusters along the coast.

To get a closer and more intricate picture of each country’s density map, head to Alasdair Rae’s long thread of rendered maps and start scrolling up to find yours!

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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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Politics

Which Countries are the Most Polarized?

This chart plots polarization for various countries based on the Edelman Trust Institute’s annual survey of 32,000+ people.

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Which Countries are the Most Polarized?

How do you measure something that’s made headlines for half a decade but is still difficult to quantify? We’re talking about polarization.

Even within the social sciences, polarization covers everything from racial segregation, to labor skill levels, to class divide, to political ideology.

How Do You Quantify Polarization?

Edelman’s data on which countries are the most polarized comes from survey results asking respondents two very simple questions:

  • How divided is their country?
  • How entrenched is the divide?

The questions help bring to light the social issues a particular country is facing and the lack of consensus on those issues.

Plotted against each other, a chart emerges. A country in the top–right corner of the chart is “severely polarized.” Countries located closer to the lower–left are considered less polarized.

In the report, Edelman identifies four metrics to watch for and measure which help quantify polarization.

Economic AnxietiesWill my family be better off in five years?
Institutional ImbalanceGovernment is viewed as unethical and incompetent.
Class DividePeople with higher incomes have a higher trust in institutions.
Battle for TruthEcho chambers, and a low trust in media.

Following Edelman’s metrics, countries with economic uncertainty and inequality as well as institutional distrust are more likely to be polarized. Below, we look at key highlights from the chart.

Severely Polarized Countries

Despite being one of the largest economies in Latin America, Argentina is the most polarized country surveyed by a large margin. Foreign loan defaults, a high fiscal deficit, and now surging inflation have created a perfect storm in the country.

43% of the Argentinian respondents said they will be better off in five years, down 17 percentage points from last year.

Along with fiscal upheaval, Argentinians are also dealing with enduring corruption in the public sector and abrupt policy reversals between governments. Only 20% of those surveyed in Argentina said they trusted the government—the least of all surveyed countries.

Here are all six of the countries considered to be severely polarized:

    🇦🇷 Argentina
    🇨🇴 Colombia
    🇺🇸 United States
    🇿🇦 South Africa
    🇪🇸 Spain
    🇸🇪 Sweden

In the U.S., heightened political upheaval between Democrats and Republicans over the last few years has led to strengthening ideological stances and to an abundance of headlines about polarization. Only 42% of respondents in the country trust the government.

And in South Africa, persistent inequality and falling trust in the African National Congress also check off Edelman’s metrics. It’s also second after Argentina with the least trust in government (22%) per the survey.

Moderately Polarized Countries

The biggest cluster of 15 countries are in moderately polarized section of the chart, with all continents represented.

    🇧🇷 Brazil
    🇰🇷 South Korea
    🇲🇽 Mexico
    🇫🇷 France
    🇬🇧 United Kingdom
    🇯🇵 Japan
    🇳🇱 Netherlands
    🇮🇹 Italy
    🇩🇪 Germany
    🇳🇬 Nigeria
    🇹🇭 Thailand
    🇰🇪 Kenya
    🇨🇦 Canada
    🇦🇺 Australia
    🇮🇪 Ireland

Some are on the cusp of being severely polarized, including economic heavyweights like Japan, the UK, France, and Germany. On the other hand, smaller economies like Thailand, Kenya, and Nigeria, are doing comparatively better on the polarization chart.

Less Polarized Countries

Countries with fair economic outlook and high trust in institutions including China, Singapore, and India are in the bottom left sector of the chart.

    🇮🇩 Indonesia
    🇨🇳 China
    🇦🇪 United Arab Emirates
    🇸🇬 Singapore
    🇸🇦 Saudi Arabia
    🇲🇾 Malaysia
    🇮🇳 India

It’s interesting to note that of the seven countries in that sector, three are not democracies. That said, there are also more developing countries on this list as well, which could also be a factor.

Looking Ahead

Edelman notes that polarization is both “cause and consequence of distrust,” creating a self-fulfilling cycle. Aside from the four metrics stated above, concerns about the erosion of civility and weakening social fabric also lead to polarization.

Edelman polarization quote

As global events unfold in 2023—including looming worries of a recession—it will be fascinating to see how countries might switch positions in the year to come.

Where does this data come from?

Source: The 2023 Edelman Trust Barometer

Data note: Survey conducted: Nov 1 – Nov 28, 2022. Survey included 32,000+ respondents in 28 countries. Russia was omitted from this year’s survey. See page 2 of the report for more details.

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