Based on a comparison of 115 countries in 2016, Hong Kong ranked the highest in population in cities of more than 1 million as a share of population with 100% followed by Singapore and Puerto Rico. On the other end of the scale was Ethiopia with 3.24%, Mozambique with 4.17% and Nepal with 4.22%.
Average population in cities of more than 1 million as a share of population reached 23.0% in 2016 in the World according to the National Statistical Office. This is 0.849 % more than in the previous year and 9.53 % more than 10 years ago.
Historically, average population in cities of more than 1 million as a share of population reached an all time high of 23.0% in 2016 and an all time low of 13.9% in 1960. The average annual growth amounted to 0.903 % since 1960.
Data for more countries are available at Population in Cities of More Than 1 million (As % of Population) indicator page.