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Animation: World’s Largest Megacities by 2100

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Animation: The World’s Largest Megacities by 2100

Throughout the course of human history, the biggest cities have always seemed impossibly large.

For many millennia, it was almost unfathomable for a city to sustain more than 1 million residents. In fact, it wasn’t until the 19th century that the largest cities globally, such as London and Beijing, were able to consistently hold populations beyond that impressive mark.

Despite this, in the modern era, we’ve quickly discovered that a city of 1 million people isn’t remarkable at all. In China alone, there are now over 100 cities with a million people today – and as such, our mental benchmark for what we consider to be a “big city” has changed considerably from past times.

Thinking Big

Just like a city the size of modern Tokyo was hard to imagine for someone living in the 19th century, it can be an extremely difficult thought experiment for us to visualize what future megacities will look like.

Researchers at the Global Cities Institute have crunched the numbers to provide us with one view of the potential megacities of the future, extrapolating a variety of factors to project a list of the 101 largest cities in the years 2010, 2025, 2050, 2075, and 2100.

Today’s video uses this data – it’s also an extension to the previous work we did based on the report here.

The Largest Megacities by 2100

According to the report, human geography will look completely unfamiliar by the turn of the century.

Here is a list of the 20 largest megacities projected for 2100:

RankPopulation (2100)CityCountry
#188.3 millionLagosNigeria
#283.5 millionKinshasaDRC
#373.7 millionDar Es SalaamTanzania
#467.2 millionMumbaiIndia
#557.3 millionDelhiIndia
#656.6 millionKhartoumSudan
#756.1 millionNiameyNiger
#854.3 millionDhakaBangladesh
#952.4 millionKolkataIndia
#1050.3 millionKabulAfghanistan
#1149.1 millionKarachiPakistan
#1246.7 millionNairobiKenya
#1341.4 millionLilongweMalawi
#1440.9 millionBlantyre CityMalawi
#1540.5 millionCairoEgypt
#1640.1 millionKampalaUganda
#1740.0 millionManilaPhilippines
#1837.7 millionLusakaZambia
#1936.4 millionMogadishuSomalia
#2035.8 millionAddis AbabaEthiopia

By the year 2100, it’s estimated that 13 of the world’s largest megacities will be located in Africa. Meanwhile, India will hold three of them – and there will be zero of them found in the Americas, China, or Europe.

Here’s a final look at the top three:

#1: Lagos, Nigeria
Nigeria’s largest city, Lagos, is expected to push the limits of how big a metropolis can get. Already, Lagos has seen explosive growth over the past few decades, and is growing so fast that no one really knows how many people live there. Over 2,000 people emigrate to the city every day, and current population estimates vary widely from 11 to 21 million inhabitants.

Either way, by the turn of the century, Lagos is projected to have a population north of 88 million.

#2: Kinshasa, DRC
Kinshasa, the capital of the Democratic Republic of Congo is projected to be the second largest city in the world with a population of 83 million.

#3: Dar Es Salaam, Tanzania
Dar Es Salaam, a city on the coast of Tanzania, has a population of just 4.4 million today. By 2100, its population is projected to jump by a whopping 1,588%, putting the total at 74 million inhabitants.

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Maps

Mapped: North America Population Patterns by Density

Nearly half a billion people live on the third-largest continent. We take a closer look in this population map of North America.

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A map of North America along with its population patterns.

Mapped: North America Population Patterns by Density

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.

From the icy expanses of the Arctic to the warm Caribbean sea, the North American continent covers nearly 25 million square kilometers, or about 15% of the Earth’s land area. Populating this vast region are nearly half a billion people, spread out from coast to valley, along the edges of arid scrublands and rainforests.

We visualize a map of North America population patterns, including Central America and the Caribbean, with spikes illustrating densely populated areas.

Data for this map is sourced from Statistics Canada, the World Bank, and WorldPop—a research group based out of the University of Southampton that tracks population growth and movement across the globe.

Ranked: Countries and Territories by Population Density

Deep in the Atlantic, seen as a small dot near Haiti on the map, the island state of Bermuda is the most densely populated jurisdiction on the continent. Measuring just 53 km² in area, and home to 65,000 people, results in an average population density of 1,266 people per km².

Also in the Caribbean, Barbados ranks second with an average population density 647 people/km², followed by Puerto Rico, ranked third-highest at 430 people/km², despite its much larger area—9,104 km².

RankCountry/TerritoryAverage Population
Density (per km²)
Area (km²)
1🇧🇲 Bermuda1,22653
2🇧🇧 Barbados647431
3🇵🇷 Puerto Rico4309,104
4🇲🇶 Martinique3931,100
5🇦🇼 Aruba370193
6🇸🇻 El Salvador31821,040
7🇻🇮 Virgin Islands308352
8🇻🇨 Saint Vincent &
the Grenadines
302389
9🇭🇹 Haiti29227,750
10🇱🇨 Saint Lucia269616
11🇬🇵 Guadeloupe2521,780
12🇯🇲 Jamaica24810,991
13🇧🇶 Netherlands Antilles229960
14🇹🇹 Trinidad & Tobago2125,128
15🇩🇴 Dominican Republic18348,730
16🇰🇾 Cayman Islands168262
17🇦🇬 Antigua & Barbuda155443
18🇰🇳 Saint Kitts & Nevis149261
19🇻🇬 British Virgin Islands147153
20🇬🇹 Guatemala134108,890
21🇦🇮 Anguilla129102
22🇨🇺 Cuba102110,860
23🇩🇲 Dominica91754
24🇲🇸 Montserrat91102
25🇨🇷 Costa Rica7851,100
26🇭🇳 Honduras62112,090
27🇲🇽 Mexico531,972,550
28🇹🇨 Turks &
Caicos Islands
47430
29🇳🇮 Nicaragua42129,494
30🇵🇦 Panama3878,200
31🇺🇸 U.S.319,629,091
32🇵🇲 Saint-Pierre
& Miquelon
28242
33🇧🇸 The Bahamas2113,940
34🇧🇿 Belize1222,966
35🇨🇦 Canada39,984,670
36🇬🇱 Greenland02,166,086
37🇺🇸 Navassa Island05.2

Source: WorldAtlas.

Naturally the largest countries on the continent—Canada, the U.S., and Mexico—have some of the lowest average population densities compared to other nations in the region.

However, thanks to their size, their overall population distribution is more apparent on a map of this scale. In Canada, the Greater Toronto Area is home to one-fifth the country’s entire population. In stark contrast, the rest of the country seems almost empty—averaging just 3 people/km².

Major U.S. cities—New York, Chicago, and San Francisco—also stand out, though the more regular dispersion of Americans, particularly in the Northeast, South, and Midwest can also be seen.

Interestingly, Monterrey in Mexico jumps out on the map; the city is built at the foot of Cerro de la Silla, and several districts are densely populated as a result.

Ranked: Continents by Population Density

How does North America compare to the other continents by population density?

Unsurprisingly, thanks to its large land area, as well as comparatively smaller population, North America is one of the least densely populated continents in the world, beaten only by Oceania, which averages 5 people/km², and Antarctica.

RankContinentAverage Population
Density (per/km²)
1Asia149
2Africa49
3Europe32
4South America25
5North America25
6Oceania5
7Antarctica0

Source: World Population Review

In comparison, Asia, while being the largest continent, is also home to 60% of the global population, and averages 149 people/km².

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