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Mapped: The World’s Population Density by Latitude

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A map of the world population by latitude.

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Mapped: The World’s Population Density by Latitude

When you think about areas with high population densities, certain regions spring to mind. This could be a populous part of Asia or a cluster of cities in North America or Europe.

Usually density comparisons are made using cities or countries, but this map from Alasdair Rae provides another perspective. This world map depicts population density by latitude, going from the densest populated coordinates in deep red to the sparsest in light blue.

Why Certain Latitudes (and Regions) Are More Densely Populated

Numerous factors affect an area’s population density. These can range from topography, or the physical terrain characteristics of the place, to more direct factors like an area’s climate, which can impact both the survivability and agricultural potential.

Political, economic, and social factors are also at play⁠—for example, there is a natural lack of livelihood opportunities in sparse areas such as the Amazon rainforest or the Himalayas.

Breaking down the population by latitude, we see the population becomes more concentrated near the equator. In particular, the 25th and 26th parallel north are the most densely populated latitude circles. Around 279 million people reside in these latitude lines, which run through large countries like India, Pakistan, Bangladesh, China, the United States, Mexico, and others.

Despite their large landmasses, many of these countries do not themselves have very high population densities. Since density measures the ratio of people to physical space, countries with vast but sparse regions like China and India are less dense than imagined.

Out of the top 10 most densely populated countries in the world, only a couple can be found on the 25th and 26th parallel north⁠—Bangladesh and Bahrain. For a size comparison, Bangladesh is 1.55% the size of China, and Bahrain is only 0.01%.

The Future of Population Density Near the Equator

Looking ahead to 2100, the UN projects that the global population will rise to almost 11 billion. This would increase global population density from 59.11 people per square kilometer in 2022 to 80.82 per square kilometer in 2100.

However, the projections show that Asia will not be the biggest contributor to this growth. Instead, the most considerable jump in population is predicted for Africa, set to grow by almost 200% from almost 1.5 billion people today to 4.3 billion in 2100.

The equator runs right through the middle of Africa and crisscrosses countries like the Congo (both the Republic and DRC), Kenya, Gabon, Uganda, and Somalia.

As Africa’s population expands, this means that at latitudes near the equator, there could be even higher population densities coming. Or course, this largely depends on how the world’s fastest growing cities⁠—most of which are in Africa⁠—shape up over the coming decades.

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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

Charted: Unauthorized Immigrants in the U.S., by Country of Origin

The U.S. has over 11 million unauthorized immigrants.

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This Voronoi graphic visualizes the country of origin for the unauthorized immigrant population in the U.S.

Visualizing Unauthorized Immigrants in the U.S.

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.

More than any other nation, the U.S. is home to over 46 million immigrants. Of these, over 11 million are unauthorized immigrants.

This graphic visualizes the countries of origin for the unauthorized immigrant population in the U.S., based on 2021 estimates from the Migration Policy Institute (MPI), published in September 2023. Because these estimates are based on 2021 figures, they don’t capture the record number of border encounters witnessed in 2022 and 2023.

Mexico’s Overall Share is Declining

According to the MPI, Mexico accounted for 7.7 million unauthorized immigrants in 2008. This suggests a 32% decline to the latest estimate of 5.2 million.

CountryRegionUnauthorized Immigrants
🇲🇽 MexicoNorth America5,203,000
🇬🇹 GuatemalaNorth America780,000
🇸🇻 El SalvadorNorth America751,000
🇭🇳 HondurasNorth America564,000
🇮🇳 IndiaAsia400,000
🇵🇭 PhilippinesAsia309,000
🇻🇪 VenezuelaSouth America251,000
🇨🇳 ChinaAsia241,000
🇨🇴 ColombiaSouth America201,000
🇧🇷 BrazilSouth America195,000
🌍 Rest of World2,322,000
Total11,217,000

Guatemala, El Salvador, and Honduras follow Mexico. According to the Migration Policy Institute, immigration from these three countries has been the most significant contributor to the growth of the Central American-born population in the U.S. since 1980. Roughly 86% of Central Americans in the United States in 2021 were born in one of these three countries.

India comes in fifth. According to U.S. Customs and Border Protection, an unprecedented number of undocumented Indian immigrants have been crossing U.S. borders on foot in recent years.

Among the factors for the increase in Indian immigration to the U.S. are the overall growth in global migration since the pandemic, oppression of minority communities in India, and extreme visa backlogs.

Learn more about unauthorized immigrants in the U.S. by our breakdown by U.S. state found here.

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