"This list ranks the world's most populous cities based on 2018 United Nations estimates, official census figures, and the 2021 Demographia World Urban Areas report. The UN recognizes three different categories of cities: "cities proper," "urban areas," and "metropolitan areas." According to the definition of "city proper," Chongqing, China is the largest city in the world.
However, by the other two definitions, Tokyo is the most populous "urban agglomeration," and Shanghai, China is the most populous "metropolitan city." This list includes the total population of all urban areas, including metropolitan areas, as determined by their highest estimates."
1- São Paulo (Brazil)
The metropolitan region of São Paulo, comprising 39 municipalities, is home to 27 million people, representing approximately 70% of the population of the entire state of São Paulo, which has a population of over 40 million. This makes it the fifth most populous metropolitan area in the world, following Chongqing, Tokyo, Shanghai, and Beijing.
2- New York (United States)
The New York metropolitan area encompasses parts of New Jersey and Connecticut, and has a total population of 23,582,649. The city of New York, which is situated at the mouth of the Hudson River on the Atlantic Ocean and covers an area of approximately 785 square kilometers, has a population of 8.8 million, making it the most populous city in the state and in the United States, and double the size of Los Angeles.
3- Manila (Philippines)
Manila is located on the east coast of Manila Bay on the island of Luzón, which is the largest island in the Philippines. The city has a population of 23,971,000 people. Despite pockets of poverty, Manila is one of the most cosmopolitan cities in the world, and its metropolitan area is the economic, cultural, and industrial hub of the country.
4- Mumbai (India)
Mumbai is a city on the west coast of India with a population of 24,400,000 people and an area of 437.71 square kilometers. It has a deep natural harbor that handles nearly half of India's maritime freight traffic.
5- Seoul (South Korea)
Seoul is situated in the northwest of South Korea, just south of the Korean Demilitarized Zone, along the Han River. It is the most significant political, cultural, social, and economic center of the country, with a population of 25,514,000 people and an area of 2,507 square kilometers.
6- Delhi (India)
Delhi is one of the oldest continuously inhabited cities in the world, with a current population of 31,870,000 inhabitants. It is located on the banks of the Yamuna River in northern India.
7- Chongqing (China)
Chongqing is an autonomous municipality in south-central China and one of four such municipalities in the People's Republic of China. It has an area of 82,401 square kilometers and a population of 32,054,159 people.
8- Jakarta (Indonesia)
Jakarta is the capital and largest city of Indonesia, situated on the northwest coast of the island of Java at the mouth of the Ciliwung River in Jakarta Bay, an inlet of the Java Sea. The city is located in a low-lying area, with an average elevation of approximately 7 meters above sea level, and has a population of 35,362,000 people over an area of 7,062 square kilometers.
9- Tokyo (Japan)
Tokyo is the capital of Japan, situated in the Kantō region on the southeastern side of Honshū, the main island of Japan, and also includes the islands of Izu and Ogasawara. The city has a population of 39,105,000 people over an area of 2,194 square kilometers. It is home to the national parliament and government, located in the district of Chiyoda, as well as the imperial palace, while the seat of the metropolitan assembly is in the district of Shinjuku.
10- Shanghai (China)
Shanghai is a city with a population of 41,354,149 people and an area of 14,923 square kilometers, located on the Huangpu River at the delta of the Yangtze River. It is considered the economic capital of China, having developed into a major economic, financial, commercial, and communications center in recent decades. Its port, the busiest in China, is among the busiest in the world along with those of Singapore and Rotterdam.
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