Cities Losing the Most People by 2070

Try to guess the urban areas expected to have the largest population decline from 2025 - 2070.
% = decline since 2025
Color-coded by continent
Quiz by
MeowILoveCats123
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Last updated: May 30, 2026
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First submittedMay 30, 2026
Times taken7
Average score72.7%
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City
%
-5,940,465
Tokyo
-17.8%
-5,307,761
Seoul
-23.6%
-4,297,067
Osaka
-33.1%
-2,717,714
São Paulo
-14.3%
-2,551,411
Taipei
-27.9%
-2,364,748
Wuhan
-32.1%
-2,069,722
Chongqing
-29.3%
-1,962,144
Tamar
-41.3%
-1,871,092
Chengdu
-30.5%
-1,753,385
Nagoya
-24.5%
-1,621,519
Guangzhou
-5.9%
-1,524,619
Shenyang
-26.7%
-1,511,056
Nanjing
-22.2%
-1,310,357
New York City
-9.4%
-1,271,867
Surabaya
-18.6%
-1,194,393
Zhengzhou
-24.5%
-1,165,533
Busan
-35.7%
-1,148,330
Mexico City
-6.5%
-1,129,801
Suzhou
-14.6%
-1,128,055
Xi'An
-21.6%
-1,098,640
Hefei
-22.6%
-1,055,782
Rio de Janeiro
-11.1%
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3 Comments
+1
Level 68
May 30, 2026
Other cities:

Kaohsiung: -985,064

Naples: -759,916

Kyiv: -491,770

Athens: 425,142

Berlin: -364,568

Singapore: -223,937 (according to the source listed above), -239,465 (according to UN estimates)

Paris: -211,981

+2
Level 62
Jun 5, 2026
Cats are the best.
+1
Level 68
Jun 5, 2026
Yes!!