Short answers, pulled from the story.
The United Nations Population Division tracks urban population and the rate of urbanization as its two distinct measures. Urban population describes the percentage of a total population living in urban areas as defined by that specific country, while the rate of urbanization describes the projected average rate of change in the size of the urban population over a given period of time.
As of 2022 there were 193 United Nations member states plus the Vatican listed with numerical data regarding their urbanization levels. Other entries appear italicized and unnumbered within the official records compiled by the UN.
Countries with more than 80 percent of people living in urban areas include the United States Canada Mexico Brazil Argentina Chile Japan Australia the United Kingdom France Finland Denmark Israel Spain and South Korea. These major Western and Asian powers demonstrate high levels of city-based living compared to other regions globally.
A single entry for the world as a whole recorded 4,522,994,900 people living in urban areas representing 57.5 percent of the total human population. This aggregate figure masks the extreme disparities between individual sovereign states ranging from 100 percent urbanization down to less than 1 percent in certain territories.
The work falls under the Department of Economic and Social Affairs which oversees demographic statistics for member states. A 2018 Revision of World Urbanization Prospects serves as the primary source document referenced by analysts studying these trends.