5 Countries with the Largest Slum Population in the World

4. Sudan

Total Urban Population (2020): 15,666,605
Percentage of Urban Population living in Slums (2020): 74%

The PSUP estimates that every fifth Sudanese lives in massive slums on the outskirts of Khartoum. The country has more than 11.5 million slum residents, which amounts to 74% of its total urban population.