| Year | Rank | Population | Answer | % Correct |
|---|---|---|---|---|
| 3. | 916,054 | Johannesburg | 100%
| |
| 3. | 1.15M | Johannesburg | 100%
| |
| 4. | 1.43M | Johannesburg | 100%
| |
| 8. | 1.55M | Johannesburg | 100%
| |
| 9. | 1.91M | Johannesburg | 100%
| |
| 6. | 3.01M | Johannesburg | 100%
| |
| 6. | 4.22M | Johannesburg | 100%
| |
| 6. | 5.72M | Johannesburg | 100%
| |
| 10. | 6.95M | Johannesburg | 100%
| |
| 10. | 7.73M | Johannesburg | 100%
| |
| 7. | 759,646 | Lagos | 100%
| |
| 5. | 1.39M | Lagos | 100%
| |
| 2. | 2.52M | Lagos | 100%
| |
| 2. | 4.84M | Lagos | 100%
| |
| 2. | 7.21M | Lagos | 100%
| |
| 2. | 10.36M | Lagos | 100%
| |
| 2. | 14.21M | Lagos | 100%
| |
| 3. | 20.44M | Lagos | 100%
| |
| 3. | 27.95M | Lagos | 100%
| |
| 1950 | 1. | 2.52M | Cairo | 97%
|
| 1960 | 1. | 3.67M | Cairo | 97%
|
| 1970 | 1. | 5.52M | Cairo | 97%
|
| 1980 | 1. | 7.29M | Cairo | 97%
|
| 1990 | 1. | 10.02M | Cairo | 97%
|
| 2000 | 1. | 13.54M | Cairo | 97%
|
| 2010 | 1. | 16.82M | Cairo | 97%
|
| 2020 | 1. | 20.74M | Cairo | 97%
|
| 2030 | 1. | 25.4M | Cairo | 97%
|
| 2. | 30.27M | Cairo | 97%
| |
| 5. | 622,316 | Cape Town | 94%
| |
| 6. | 802,415 | Cape Town | 94%
| |
| 7. | 1.1M | Cape Town | 94%
| |
| 7. | 1.59M | Cape Town | 94%
| |
| 6. | 2.17M | Cape Town | 94%
| |
| 9. | 2.77M | Cape Town | 94%
| |
| 9. | 3.58M | Cape Town | 94%
| |
| 10. | 1.81M | Addis Ababa | 91%
| |
| 9. | 4.72M | Addis Ababa | 91%
| |
| 7. | 7.29M | Addis Ababa | 91%
| |
| 7. | 10.72M | Addis Ababa | 91%
| |
| 4. | 632,930 | Casablanca | 91%
| |
| 4. | 965,012 | Casablanca | 91%
| |
| 3. | 1.48M | Casablanca | 91%
| |
| 4. | 2.09M | Casablanca | 91%
| |
| 5. | 2.7M | Casablanca | 91%
| |
| 5. | 3.13M | Casablanca | 91%
| |
| 10. | 3.44M | Casablanca | 91%
| |
| 8. | 1.04M | Kinshasa | 91%
| |
| 5. | 2.01M | Kinshasa | 91%
| |
| 3. | 3.76M | Kinshasa | 91%
| |
| 3. | 6.07M | Kinshasa | 91%
| |
| 3. | 9.3M | Kinshasa | 91%
| |
| 3. | 14.14M | Kinshasa | 91%
| |
| 2. | 21.72M | Kinshasa | 91%
| |
| 2040 | 1. | 32.13M | Kinshasa | 91%
|
| 2. | 1.05M | Alexandria | 89%
| |
| 2. | 1.5M | Alexandria | 89%
| |
| 2. | 1.97M | Alexandria | 89%
| |
| 3. | 2.5M | Alexandria | 89%
| |
| 4. | 3.07M | Alexandria | 89%
| |
| 4. | 3.53M | Alexandria | 89%
| |
| 5. | 4.31M | Alexandria | 89%
| |
| 7. | 5.24M | Alexandria | 89%
| |
| 7. | 521,695 | Algiers | 86%
| |
| 5. | 869,291 | Algiers | 86%
| |
| 6. | 1.27M | Algiers | 86%
| |
| 6. | 1.61M | Algiers | 86%
| |
| 10. | 4.67M | Nairobi | 83%
| |
| 9. | 6.97M | Nairobi | 83%
| |
| 8. | 10.23M | Nairobi | 83%
| |
| 8. | 3.82M | Dar es Salaam | 80%
| |
| 5. | 6.58M | Dar es Salaam | 80%
| |
| 5. | 10.68M | Dar es Salaam | 80%
| |
| 5. | 16.56M | Dar es Salaam | 80%
| |
| 8. | 2.79M | Luanda | 77%
| |
| 4. | 5.23M | Luanda | 77%
| |
| 4. | 8.23M | Luanda | 77%
| |
| 4. | 12.03M | Luanda | 77%
| |
| 4. | 17.45M | Luanda | 77%
| |
| 9. | 474,748 | Tunis | 77%
| |
| 10. | 587,704 | Tunis | 77%
| |
| 9. | 1.35M | Abidjan | 69%
| |
| 7. | 2.13M | Abidjan | 69%
| |
| 7. | 2.98M | Abidjan | 69%
| |
| 7. | 3.93M | Abidjan | 69%
| |
| 8. | 5.15M | Abidjan | 69%
| |
| 8. | 7.08M | Abidjan | 69%
| |
| 9. | 9.72M | Abidjan | 69%
| |
| 10. | 1.31M | Kano | 63%
| |
| 8. | 2.11M | Kano | 63%
| |
| 8. | 488,352 | Durban | 57%
| |
| 9. | 676,325 | Durban | 57%
| |
| 10. | 848,710 | Durban | 57%
| |
| 10. | 2.6M | Durban | 57%
| |
| 6. | 8.93M | Kampala | 57%
| |
| 6. | 15.38M | Kampala | 57%
| |
| 10. | 452,223 | Ibadan | 40%
|