According to the United Nations, in 2050 the world’s population is expected to be around 9.8 billion, which is expected to grow to an astonishing 11.2 billion people in 2100.
Back in 2010, Tokyo, Japan had the biggest population of any city on the planet with a population of over 36 Million people. This was nearly 15 million more than Delhi, India, which had the second highest population.
Fast forward 90 years you’d expect Tokyo to be even further ahead, right? Wrong. Tokyo is predicted to not even make it into the top 20 cities in the world.
In fact, only 6 of the top 20 cities with the highest population in 2010 are predicted to still be in the top 20 by 2100.
In this research led piece, Roof Stores have been tracking the top 20 cities in the world with the highest population back in 2010 and following their projected population increase or decrease over the years. If they drop out of the top 20, the city that overtakes it joins the chart and replaces it.
Read on to see how it’s changed!
The Top 10 Biggest Cities by Population in 2010 were:
Tokyo, Japan - 36,834,000
Delhi, India - 21,935,000
Mexico City, Mexico - 20,132,000
Shanghai, China - 19,980,000
São Paulo, Brazil - 19,660,000
Osaka, Japan - 19,492,000
Mumbai, India - 19,422,000
New York, United States of America - 18,365,000
Cairo, Egypt - 16,899,000
Beijing, China - 16,190,000
The Top 10 Biggest Cities by Population in 2025 are expected to be:
Tokyo, Japan - 36,400,000
Mumbai (Bombay), India - 26,385,000
Delhi, India - 22,498,000
Dhaka, Bangladesh - 22,015,000
Sao Paulo, Brazil - 21,428,000
Mexico City, Mexico - 21,009,000
New York City-Newark, USA - 20,628,000
Kolkata (Calcutta), India - 20,560,000
Shanghai, China - 19,412,000
Karachi, Pakistan - 19,095,000
The Top 10 Biggest Cities by Population in 2050 are expected to be:
Mumbai (Bombay), India - 42,403,631
Delhi, India - 36,156,789
Dhaka, Bangladesh - 35,193,184
Kinshasa, Democratic Republic of the Congo - 35,000,361
Kolkata (Calcutta), India - 33,042,208
Lagos, Nigeria - 32,629,709
Tokyo, Japan - 32,621,993
Karachi, Pakistan - 31,696,042
New York City-Newark, USA - 24,768,743
Mexico City, Mexico - 24,328,738
The Top 10 Biggest Cities by Population in 2075 are expected to be:
Kinshasa, Democratic Republic of Congo - 58,424,142
Mumbai, India - 57,862,345
Lagos, Nigeria - 57,195,075
Delhi, India - 49,338,148
Dhaka, Bangladesh - 46,218,971
Kolkata, India - 45,088,111
Karachi, Pakistan - 43,373,574
Dar Es Salaam, United Republic of Tanzania - 37,484,980
Cairo, Egypt - 32,999,203
Manila, Philippines - 32,748,758
The Top 10 Biggest Cities by Population in 2100 are expected to be:
Lagos, Nigeria - 88,344,661
Kinshasa, Democratic Republic of Congo - 83,493,793
Dar Es Salaam, United Republic of Tanzania - 73,678,022
Mumbai, India - 67,239,804
Delhi, India - 57,334,134
Khartoum, Sudan - 56,594,472
Niamey, Niger - 56,149,130
Dhaka, Bangladesh - 54,249,845
Kolkata, India - 52,395,315
Kabul, Afghanistan - 50,269,659
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