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Top 10 most populous cities in the world

The population of our world is unevenly and unreasonably distributed. Big cities are gradually becoming overloaded while rural areas are very sparsely populated. In this article, let's take a look at the most populous cities in the world to get more useful information about the world around us!

1. Tokyo, Japan

The estimated population of Tokyo in 2021 is 37,435,191. In 1950, the population of Tokyo was 11,274,641. Tokyo has lost 53,324 people since 2015, representing a change of -0.14% annually. These population estimates and projections are taken from the latest revision of the United Nations World Urbanization Prospects. These estimates represent the urban agglomeration of Tokyo, which typically includes the population of Tokyo along with its surrounding suburbs.

Tokyo has always been Japan's largest city, and one of the most powerful cities in Asia. Once known as Edo, it grew from a small village in the 1720s to become the first city in Asia with a population of over 1 million. The process of migration from rural areas to urban areas. As well as the immigration and settlement of foreigners here, Tokyo has become the most populous city in the world. Tokyo has also always been the richest city in the world.
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2. Delhi, India

Delhi, or the National Capital Territory (NCT) of India, is a major metropolitan area in India. Delhi is the most populous city in India and the second most populous in the world. The estimated population of Delhi in 2021 is 31,181,376. In 1950, the population of Delhi was 1,369,369. Delhi has increased by 890,440 since 2015, representing an annual change of 2.94%. These population estimates and projections are taken from the latest revision of the United Nations World Urbanization Prospects. These estimates represent the urban agglomeration of Delhi, which generally includes the population of Delhi in addition to its surrounding suburbs.

Delhi has been continuously inhabited since at least the 6th century, and has been the capital of many empires and kingdoms throughout its history. It has also been destroyed and rebuilt many times. It was the site of Indraprastha, the mythical capital of the Pandavas, and it became a major trade route between the Gangetic Plain and northwestern India during the time of the Delhi kings. In 1639, the walled city of Shahjahanabad was built in Delhi to serve as the capital of the Mughal Empire until 1857. Today, Shahjahanabad is located in Old Delhi. In 1911, the British decided to change the capital of India to Delhi from Calcutta, and New Delhi was built in 1912 to the south of the old city. Today, New Delhi is part of the larger city of Delhi, and New Delhi is the capital of India.
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3. Shanghai, China

Shanghai is the largest city in the world by area. It is also one of the most populous cities in the world. Shanghai has also been one of the fastest growing cities in the past 20 years. World Population Review notes that Shanghai has “grown by double digits almost every year since 1992, with the exception of the 2008–2009 global recession.”

Despite the slowing growth, the city is still growing. Experts predict that Shanghai’s population could reach 50 million by 2050. Currently, Shanghai’s population is estimated at 27,795,702. The city covers a total area of ​​6,340.5 square kilometres (2,448 sq mi) and is mostly flat, except for a few hills in the southwest region, which have an average elevation of just 4 metres. Shanghai also has an extensive network of rivers, canals, lakes and streams, all of which combine to create the perfect setting for its large population.
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4. Sao Paulo, Brazil

The population of Sao Paulo in 2021 is currently estimated to be 22,237,472. In 1950, the population of Sao Paulo was 2,334,038. Sao Paulo has increased by 194,444 since 2015, representing an annual change of 0.88%. These population estimates and projections are taken from the latest revision of the United Nations World Urbanization Prospects

São Paulo is the most populous city in Brazil, the largest in the Americas and the Southern Hemisphere. It is also one of the top 10 largest metropolitan areas in the world. São Paulo is a global city with strong influence in arts, entertainment, finance, and commerce, and it hosts the largest gay pride parade in the world. It is also a city of immigrants. In a World Population Review survey at the University of Sao Paulo, “81% of students said they were descendants of foreign immigrants.”
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5. Mexico City, Mexico

Mexico City is also one of the most populous and densely populated cities in the world. The 2021 population of Mexico City is currently estimated to be 21,918,936. In fact, 20% of Mexico's population lives in Mexico City. The rapid growth has meant that the city has struggled to provide essential services to its residents, such as housing, but there is hope on the horizon. The population only grew by 0.5% from 2019 to 2020.

Mexico City has a long and rich history and is known as one of the continent's largest financial centers and the largest Spanish-speaking city in the world. The Mexico City we know today is home to a large population of immigrants and expatriates from Canada, the United States, South America (especially Colombia and Argentina), Central America (especially Guatemala and El Salvador), the Caribbeans (mainly Cuba and Haiti), Europe (especially Spain and Germany), and the Middle East (especially Egypt, Syria, and Lebanon.) Most recently, there has been a wave of immigration from Asia-Pacific countries such as Korea and China.
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6. Dhaka, Bangladesh

In 1950, Dhaka's population was 335,760. However, it is now one of the most populous cities in the world with an estimated population of 21,741,090. Dhaka is a diverse city located in central Bangladesh along the Buriganga River. It is not only the capital but also the largest city in the country. In 2016, the population of the Greater Dhaka Area was 18.237 million.

Dhaka's population density is 23,000 people per square kilometer. And about 2000 people move to the city every day. Natural disasters and epidemics cause people to leave their villages to come to the city. It is no surprise that 1/4 of Bangladeshis live below the poverty line. An estimated 3 million people live in slums in Dhaka.
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7. Cairo, Egypt

The capital city of Egypt has been settled since at least the 4th century. This is due to its important location on the Nile. After the plagues of the Middle Ages and riots that destroyed the city in the 1950s, it grew at a rapid pace. In 1950, Cairo had a population of 2,493,514. Today, that number has surpassed 20 million, with an estimated 21,322,700. Even the core city’s population is a staggering 12 million.

Cairo is the largest city in Africa as well as the Middle East. Nearly 100% of Egypt’s population lives in Cairo, Alexandria, or elsewhere along the banks of the Nile and the Suez Canal. Cairo and other large parts of the country are among the most densely populated places in the world. Cairo has a population density of 19,376 people/km, ranking 37th in the world.
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8. Beijing, China

It would be remiss if the cities of the country of a billion people were not on this list, right? In 1950, the population of Beijing was 1,671,365 people. Beijing is the second largest city in China and the most populous city in the world. The population of Beijing is almost equal to the entire population of Australia, with an estimated current population of 20,896,800 people.

The population of Beijing is constantly growing at a dizzying rate. The censuses in the ten years from 2000 to 2010, showed that the number of people living in the city of Beijing increased by 44% – from 13,569,194 in 2000 to 19,612,368 in 2010. It is forecast to continue to increase through 2035.

According to Reuters, one of the serious drawbacks to such a large urban population is pollution. Beijing has the worst air to breathe. This is due to polluting coal plants and heavy traffic.
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9. Mumbai, India

Another Indian city continues to make the list of the most populous cities in the world – Mumbai. Also known as Bombay, it is the capital city of the Indian state of Maharashtra. Its trains alone carry around 6 million people every day.

Mumbai’s population has increased over the past 20 years and currently stands at around 20,667,600. In fact, it has doubled since 1991, when rural migrants came to the city in search of work. But the reality of the population is grim. According to a report by the World Population Review, 41% of the population in Mumbai and its surrounding areas live in slums. The rapid expansion has led to serious health problems that the government has had to address.
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10. Osaka, Japan

Osaka is the next Japanese city on the list of the most populous cities in the world. In 1950, Osaka's population was 7,005,284 people. Surprisingly, Osaka's population in early 2021 did not increase compared to 2020, but decreased. The current population of Osaka is estimated at 19,110,600 people.

Specifically, the decrease is -0.29%. The population of Osaka, Japan in 2020 was 19,165,340 people, down to 19,110,600 people in 2020. This decrease is believed to be due to residents moving from the city to the suburbs. Due to the low birth rate as well as the number of deaths being higher than the number of births by about 200,000 people.
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