Ranked: The Most Populous Cities in the World
More than half of the world’s population currently lives in cities—and as time goes on, it’s clear that more urban dwellers will find themselves living in megacities.
Megacities are defined as urban areas with a population of more than 10 million people. This means that the world’s top 20 most populous cities are all megacities.
This visualization, using data from Macrotrends, shows the 20 most populous cities in the world.
Today, more than 80% of people in higher income countries find themselves living in urban areas, and in upper-middle income countries the number lies between 50-80%.
Rural-to-urban migration is an increasingly relevant trend in the 21st century. Prospects of better job opportunities and higher wages, along with shifts from agrarian to industrial and service-based economies, are causing mass movement to cities.
How much have the world’s five most populous cities grown in just the last decade?
|Rank||City||2010 Population||2020 Population||Percentage Change|
|#4||🇧🇷 São Paulo||19,660,000||22,043,000||+12.1%|
|#5||🇲🇽 Mexico City||20,132,000||21,782,000||+8.2%|
While Tokyo only gained 559,000 people between 2010 and 2020, Delhi gained over 8 million people in the same time frame.
Shanghai grew by over 7 million people. Meanwhile, São Paulo grew by more than 2 million, and Mexico City gained just over 1.6 million people.
Interestingly, Mexico City placed third on the top largest cities list in 2010, but has since experienced slower growth compared to its competitors, Shanghai and São Paulo.
The Most Populous Cities Today
While Tokyo is the world’s most populous city with 37,393,000 people, this number is leveling out due to declining birth rates and an aging population.
Indian and Chinese cities, on the other hand, will continue to grow rapidly in the coming years. In fact, it’s expected that Delhi’s population could surpass Tokyo’s by 2028.
Here’s a closer look at the top 20 most populous cities.
|4||🇧🇷 São Paulo||22,043,000|
|5||🇲🇽 Mexico City||21,782,000|
|11||🇺🇸 New York City||18,804,000|
|15||🇦🇷 Buenos Aires||15,154,000|
By 2035, two new cities are expected to crack the top 20 list. Specifically, it’s projected that Bangalore (India) and Lahore (Pakistan) will boot out Tianjin and Buenos Aires. In addition, Guangzhou, Shenzhen, and Chennai are all expected to meet the megacity definition by 2035.
Urban growth will continue mainly in Asia and Africa, as some cities in regions such as Europe actually begin to shrink in population due to aging citizens and declining birth rates. Since 2012, deaths in the EU have actually been outpacing births—and in 2019, there were 4.7 million deaths compared to 4.2 million births, though net migration kept population numbers from falling.
Life in the City
While there are certainly downsides to mass urbanization, like pollution and overcrowding, the upsides clearly outweigh the negatives for most people. Convenience, better jobs, easier access to social services, and higher wages are among the many reasons people are likely to continue to move to cities, even in the post-COVID era.
With the emergence of smart and green cities, the quality of life for many urban dwellers will likely continue to improve, and more large urban areas will morph into megacities.
All World Languages in One Visualization
See the world’s major languages broken down by country in this stunning visualization.
All World Languages, By Native Speakers
View a high resolution version of today’s graphic by clicking here.
Languages provide a window into culture and history. They’re also a unique way to map the world – not through landmasses or geopolitical borders, but through mother tongues.
The Tower of Babel
Today’s infographic from Alberto Lucas Lopez condenses the 7,102 known living languages today into a stunning visualization, with individual colors representing each world region.
Only 23 languages are spoken by at least 50 million native speakers. What’s more, over half the planet speaks at least one of these 23 languages.
Chinese dominates as a macrolanguage, but it’s important to note that it consists of numerous languages. Mandarin, Yue (including Cantonese), Min, Wu, and Hakka cover over 200 individual dialects, which vary further by geographic location.
|Country||Native Chinese speakers (millions)|
|🇭🇰 Hong Kong SAR||6.5|
|🇲🇴 Macau SAR||0.5|
Chinese is one of the most challenging languages for English speakers to pick up, in part due its completely unfamiliar scripts. You’d have to know at least 3,000 characters to be able to read a newspaper, a far cry from memorizing the A-Z alphabet.
Spanglish Takes Over
After Chinese, the languages of Spanish and English sit in second and third place in terms of global popularity. The rapid proliferation of these languages can be traced back to the history of Spanish conquistadors in the Americas, and British colonies around the world.
Animation: Map of Colonization (1492 – 2008):
Today, Spanish has 399 million native speakers, but these are mostly concentrated in Latin America. English has 335 million native speakers under its belt, with a widespread reach all over the globe.
Two Worlds, One Family
While the visualization makes all the world languages seem disparate, this linguistic family tree shows how they grew from a common root. It also explains how languages can evolve and branch out over time.
Created by Minna Sundberg. Full version.
This linguistic tree also includes many languages that are not on the large visualization of 23 mother tongues. Some of them might be considered endangered or at risk today, such as Catalan or Welsh. However, with globalization, a few interesting linguistic trends are arising.
1. Language revival
Certain enclaves of marginalized languages are being preserved out of pride for the traditional and cultural histories attached.
While Catalan was once banned, its rebirth is a key marker of identity in Barcelona. More than 150 universities teach Catalan worldwide. In the case of Welsh, a mammoth university project plans to make sure it does not die out. Researchers are compiling ten million Welsh words to preserve the past, present, and future of the language.
2. Language forecast
At this point in time, English is the lingua franca – adopted as a common language among speakers with different mother tongues. However, this status might soon be fuzzier as demographic trends continue.
The rise of China is an obvious one to consider. As China continues to increase its economic might and influence, its languages will proliferate as well.
At the same time, 26 African countries are projected to double their current size, many of which speak French as a first language. One study by investment bank Natixis suggests that Africa’s growth may well bring French to the forefront – making it the most-spoken language by 2050.
Could French provide a certain je ne sais quoi that no other world language can quite replace?
This post was first published in 2018. We have since updated it, adding in new content for 2021.
Ranked: The World’s Fastest Growing Cities
Nearly 60% of the world’s population lives in cities and this trend is not slowing down—take a look at the world’s 20 fastest growing cities.
Ranked: The World’s Fastest Growing Cities
By 2025, the world’s population will reach over 8.1 billion people.
Most of that population growth will be concentrated in cities across Africa and Asia. To help paint a detailed picture, this map uses data from the United Nations to rank the top 20 fastest growing cities in the world in terms of average annual growth rate from 2020 to 2025.
Full Speed Ahead
The majority of the world’s fastest growing cities are located in Africa—in fact, 17 of the 20 are located on the continent, with four of the 20 cities being located in Nigeria specifically.
Population growth is booming across the entire continent, as many countries retain high birth rates. According to the World Bank, the 2019 fertility rate (births per woman) in Sub-Saharan Africa was 4.6, compared to the global fertility rate of 2.4.
|City||Country||Continent||Annual Growth (2020-2025p)|
|Kabinda||🇨🇩 Democratic Republic of Congo||Africa||6.37%|
|Bunia||🇨🇩 Democratic Republic of Congo||Africa||5.63%|
|Goma||🇨🇩 Democratic Republic of Congo||Africa||5.14%|
Nigeria’s economy is largely based on petroleum which has resulted in the country becoming one of the strongest economies in Africa. This, coupled with a high birth rate and a resulting young population, has given the country a strong and rising workforce.
However, the population growth in Nigeria is both a blessing and a curse. The success of the economy, among other factors, has resulted in excessive rural-to-urban migration. This mass exodus from rural areas has led to less farming, which means the country now needs to import basic food staples at a high cost.
In Mozambique, Tete and Quelimane are growing 5.56% and 5.14% respectively. The country is expected to experience strong economic growth after facing contractions due to the pandemic. Forecasts predict that the Mozambiques’s economy will grow 4% by 2022.
Implications of Fast Growth
All of the top 20 fastest growing cities are located in either Africa or Asia, and they are far outpacing growth on other continents, such as Europe, for example.
Fastest Growing Cities: Europe vs. Global
|Europe's Fastest Growing Cities||Growth Rate||World's Fastest Growing Cities||Growth Rate|
|🇷🇺 Balashikha, Russia||2.01%||🇳🇬 Gwagwalada||6.46%|
|🇷🇺 Tyumen, Russia||1.88%||🇨🇩 Kabinda||6.37%|
|🇦🇱 Tiranë (Tirana), Albania||1.63%||🇧🇩 Rupganj||6.36%|
|🇳🇴 Oslo, Norway||1.38%||🇳🇬 Lokoja||5.93%|
|🇷🇺 Sochi, Russia||1.33%||🇦🇴 Uige||5.92%|
|🇬🇧 Coventry-Bedworth, UK||1.32%||🇧🇮 Bujumbura||5.75%|
|🇸🇪 Stockholm, Sweden||1.25%||🇹🇿 Songea||5.74%|
|🇨🇭 Lausanne, Switzerland||1.23%||🇨🇳 Xiongan||5.69%|
|🇷🇺 Krasnodar, Russia||1.22%||🇳🇬 Potiskum||5.65%|
|🇷🇺 Surgut, Russia||1.17%||🇨🇩 Bunia||5.63%|
|🇷🇺 Podolsk, Russia||1.16%||🇲🇿 Tete||5.56%|
|🇮🇪 Dublin, Ireland||1.12%||🇦🇴 Cuito||5.48%|
|🇬🇧 London, UK||1.12%||🇮🇳 Hosur||5.38%|
|🇳🇱 Utrecht, Netherlands||1.11%||🇧🇯 Abomey-Calavi||5.27%|
|🇸🇪 Göteborg, Sweden||1.07%||🇳🇬 Nnewi||5.18%|
|🇫🇷 Toulouse, France||1.07%||🇦🇴 Malanje||5.17%|
|🇸🇪 Malmö, Sweden||1.05%||🇨🇲 Mbouda||5.16%|
|🇫🇷 Montpellier, France||1.04%||🇲🇿 Quelimane||5.14%|
|🇫🇷 Bordeaux, France||0.99%||🇺🇬 Kampala||5.14%|
|🇨🇭 Genève, Switzerland||0.99%||🇨🇩 Goma||5.14%|
By 2050, Sub-Saharan Africa will be home to close to 2 billion people and roughly half will be under the age of 25. This represents an enormous labor force and opportunities for innovation and growth. In fact, in navigating the pandemic, Africa is already starting to capitalize on digital advances in both traditional and new sectors.
China has its eye on Africa, as evidenced through their multiple investments in infrastructure projects in the continent. Additionally, NATO countries have recently committed to investing similar amounts in Africa to counter China’s influence.
In spite of the economic potential, increased city sizes could be problematic for some of these countries. They will need to adapt to the issues associated with mass urbanization, like pollution, overcrowding, and high costs of living.
Population booms can lead to massive economic growth, a larger (and younger) working population, and a growing domestic consumer market.
As the aforementioned cities continue their rapid expansion, and as people continue to flock to growing megacities in Africa and Asia, it could represent the beginning of an important economic shift that is worth keeping an eye on.
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