Population in cities of more than 1 million fell 0.118% to 81.5 mil in Japan in 2021, according to the National Statistical Office.
Historically, population in cities of more than 1 million in Japan reached an all time high of 81.8 mil in 2018 and an all time low of 37.5 mil in 1960. When compared to Japan's main peers, population in cities of more than 1 million in China amounted to 420 mil, 34.0 mil in Russia, 26.1 mil in South Korea and 155 mil in USA in 2021.
Japan has been ranked 5th within the group of 121 countries we follow in terms of population in cities of more than 1 million, 1 place below the position seen 10 years ago.
| Population in Cities of More Than 1 million | Unit | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 |
| Canada | mil | 16.3 | 16.6 | 16.8 | 17.0 | 17.2 | ||||||||||||||||
| China | mil | 358 | 368 | 378 | 388 | 399 | ||||||||||||||||
| Dem. People's Republic of Korea | mil | 2.97 | 2.99 | 3.02 | 3.04 | 3.06 | ||||||||||||||||
| Germany | mil | 7.79 | 7.84 | 7.89 | 7.94 | 7.98 | ||||||||||||||||
| India | mil | 193 | 198 | 203 | 209 | 214 | ||||||||||||||||
| Japan | mil | 81.3 | 81.4 | 81.6 | 81.8 | 81.7 | ||||||||||||||||
| Mexico | mil | 49.5 | 50.1 | 50.8 | 51.4 | 52.0 | ||||||||||||||||
| Russia | mil | 32.6 | 32.9 | 33.2 | 33.5 | 33.7 | ||||||||||||||||
| South Korea | mil | 25.5 | 25.6 | 25.8 | 25.9 | 26.0 | ||||||||||||||||
| USA | mil | 146 | 148 | 149 | 151 | 153 | ||||||||||||||||
| Vietnam | mil | 14.2 | 14.8 | 15.5 | 16.2 | 16.7 |
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