| | Country | City | Population ↓ |
|---|---|---|---|
| Kenya | Nairobi | 5,603,502 | |
| Ethiopia | Addis Ababa | 4,229,569 | |
| Somalia | Mogadishu | 3,307,421 | |
| Madagascar | Antananarivo | 2,567,094 | |
| Zambia | Lusaka | 2,393,400 | |
| Rwanda | Kigali | 2,075,215 | |
| Uganda | Kampala | 1,862,258 | |
| Zimbabwe | Harare | 1,494,371 | |
| Malawi | Lilongwe | 1,344,144 | |
| Mozambique | Maputo | 1,067,522 | |
| Tanzania | Dodoma | 934,592 | |
| Djibouti | Djibouti | 806,174 | |
| Eritrea | Asmara | 783,135 | |
| Burundi | Bujumbura | 758,892 | |
| Reunion | Saint-Denis | 159,007 | |
| Mauritius | Port Louis | 141,235 | |
| Comoros | Moroni | 90,383 | |
| Mayotte | Mamoudzou | 71,437 | |
| Seychelles | Victoria | 4,739 | |
| Saint Helena Ascension and Tristan da Cunha | Jamestown | 3,942 |
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27 cities