 
				Population in cities of more than 1 million as a share of population fell 0.105% to 76.1% in Puerto Rico in 2024, according to the National Statistical Office.
Historically, population in cities of more than 1 million as a share of population in Puerto Rico reached an all time high of 76.1% in 2023 and an all time low of 25.3% in 1960.
Puerto Rico has been ranked 3rd 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% | ||||||||||||||||
| Cayman Islands | % | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | 
| China | % | 27.7% | 28.3% | 29.0% | 29.8% | 30.5% | ||||||||||||||||
| Cuba | % | 19.0% | 19.1% | 19.2% | 19.3% | 19.4% | ||||||||||||||||
| Dominican Republic | % | 29.4% | 29.8% | 30.1% | 30.5% | 30.8% | ||||||||||||||||
| Haiti | % | 24.1% | 24.4% | 24.7% | 25.0% | 25.3% | ||||||||||||||||
| Jamaica | % | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | 
| Japan | % | 64.5% | 64.5% | 64.7% | 64.9% | 65.1% | ||||||||||||||||
| Mexico | % | 41.2% | 41.4% | 41.5% | 41.8% | 42.0% | ||||||||||||||||
| Puerto Rico | % | 74.6% | 74.2% | 74.6% | 75.0% | 75.9% | ||||||||||||||||
| USA | % | 46.1% | 46.2% | 46.4% | 46.7% | 46.9% |