Population of clusters of cities with more than 2.5 million urban residents within 100 kilometers’ travel distance in Africa as of 2021
(in millions)
Characteristic
Number of people in millions
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The source adds the following information:
"Compact city clusters consist of cities with more than 30 000 inhabitants that are within 100 kilometres by road with a total urban population of more than 2.5 million inhabitants (including their own population). Cities that meet this criterion within 100 kilometres of each other by road are assigned to the same cluster. Cities that do not meet the criteria above, but which are located within 60 minutes’ travel of a city that does, are assigned to the same cluster".
Figures are rounded.
Citation formats
Population of largest city clusters in Africa 2021
The Egyptian area of Cairo‑Alexandria‑Suhag was the largest city cluster in Africa as of 2021. Considering the over 1,000 cities that are part of the cluster (cities with over * residents that are within 100 kilometers' distance, adding up to a population of over *** million), the area counted around ** million inhabitants. The clusters of Lagos‑Ibadan‑Cotonou and Onitsha‑Uyo‑Port Harcourt in Nigeria followed, accounting for approximately ** million and ** million residents, respectively.
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AfDB. (April 26, 2022). Population of clusters of cities with more than 2.5 million urban residents within 100 kilometers’ travel distance in Africa as of 2021 (in millions) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved August 02, 2026, from /statistics/1307706/population-of-city-clusters-in-africa/
AfDB. "Population of clusters of cities with more than 2.5 million urban residents within 100 kilometers’ travel distance in Africa as of 2021 (in millions)." Chart. April 26, 2022. ÌÇÐÄÆƽâ°æ. Accessed August 02, 2026. /statistics/1307706/population-of-city-clusters-in-africa/
AfDB. (2022). Population of clusters of cities with more than 2.5 million urban residents within 100 kilometers’ travel distance in Africa as of 2021 (in millions). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: August 02, 2026. /statistics/1307706/population-of-city-clusters-in-africa/
AfDB. "Population of Clusters of Cities with More than 2.5 Million Urban Residents within 100 Kilometers’ Travel Distance in Africa as of 2021 (in Millions)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 26 Apr 2022, /statistics/1307706/population-of-city-clusters-in-africa/
AfDB, Population of clusters of cities with more than 2.5 million urban residents within 100 kilometers’ travel distance in Africa as of 2021 (in millions) ÌÇÐÄÆƽâ°æ, /statistics/1307706/population-of-city-clusters-in-africa/ (last visited August 02, 2026)
Population of clusters of cities with more than 2.5 million urban residents within 100 kilometers’ travel distance in Africa as of 2021 (in millions) [Graph], AfDB, April 26, 2022. [Online]. Available: /statistics/1307706/population-of-city-clusters-in-africa/
