for - definition - city - definition degree of urbanization - UN Statistical Commission report 2020 - from - there are 10,000 cities on planet Earth - https://hyp.is/91Rx7LgAEfCT6ytaqg9C9Q/nextcity.org/urbanist-news/there-are-10000-cities-on-planet-earth-half-didnt-exist-40-years-ago

summary - This 2020 report was commissioned by the UN Statisticial Commission to develop a robust, standardized definition of cities, towns and rural communities (villages) to aid in international comparison of human settlements

for - definition - city - towns and cities - to - UN Statistical Commission Report - https://hyp.is/Y4mBcrgGEfCKeB-o1NPMjA/unstats.un.org/UNSDWebsite/statcom/session_52/documents/BG-4a-DEGURBA_Manual-E.pdf

summary - A new definition of cities settles an outstanding ambiguity in urban planning - what is the definition of a city? - Defined as a location with minimum population of 50,000 and population density of 1,500 people / square kilometers, it turns out there are 10,000 cities on the planet, and 48% of humanity lives in cities. - 25% of humanity lives in towns, which are future cities