China has urbanized significantly in recent decades. The percent of the country's population living in urban areas increased from 20% in 1980 to over 60% in 2019.[512][513][514] It is estimated that China's urban population will reach one billion by 2030, potentially equivalent to one-eighth of the world population.[513][514]China has over 160 cities with a population of over one million,[515] including the 10 megacities\516\ of Chongqing, Shanghai, Beijing, Chengdu, Harbin, Guangzh...