 
				Population in cities of more than 1 million as a share of population rose 0.236% to 65.4% in Japan in 2024, according to the National Statistical Office.
Historically, population in cities of more than 1 million as a share of population in Japan reached an all time high of 65.4% in 2024 and an all time low of 40.2% in 1960. When compared to Japan's main peers, population in cities of more than 1 million as a share of population in China amounted to 32.0%, 23.9% in Russia, 50.9% in South Korea and 46.8% in USA in 2024.
Japan has been ranked 5th within the group of 121 countries we follow in terms of population in cities of more than 1 million as a share of population.
| Population in Cities of More Than 1 million (As % of Population) | Unit | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 
| Canada | % | 45.9% | 45.8% | 45.8% | 46.0% | 45.6% | ||||||||||||||||
| China | % | 27.7% | 28.3% | 29.0% | 29.8% | 30.5% | ||||||||||||||||
| Germany | % | 9.58% | 9.60% | 9.63% | 9.66% | 9.62% | ||||||||||||||||
| India | % | 15.2% | 15.4% | 15.7% | 15.9% | 16.2% | ||||||||||||||||
| Japan | % | 64.5% | 64.5% | 64.7% | 64.9% | 65.1% | ||||||||||||||||
| Mexico | % | 41.2% | 41.4% | 41.5% | 41.8% | 42.0% | ||||||||||||||||
| North Korea | % | 11.7% | 11.8% | 11.8% | 11.8% | 11.9% | ||||||||||||||||
| Russia | % | 23.0% | 23.2% | 23.3% | 23.5% | 23.6% | ||||||||||||||||
| South Korea | % | 50.2% | 50.2% | 50.2% | 50.4% | 50.7% | ||||||||||||||||
| USA | % | 46.1% | 46.2% | 46.4% | 46.7% | 46.9% | ||||||||||||||||
| Vietnam | % | 16.8% | 17.2% | 17.7% | 18.1% | 18.6% |