Nairobi
Nairobi (5.3 million inhabitants): major city of Kenya, with country factbook, ranking and leader links.
Last updated: October 2026
| Country | Kenya |
|---|---|
| Population | 5.3 million |
| Capital | Yes — national capital |
Source: UN World Urbanization Prospects, 2022 Revision (metropolitan agglomeration estimate). Observation date: 2022. The Bureau cross-checked major-city figures against UN WUP; smaller-city figures are presented as published and have not been individually re-verified.
Nairobi has a metropolitan population of 5.3 million, according to the UN World Urbanization Prospects (2022 Revision) cited on this page.
Nairobi is in Kenya. It is the national capital of Kenya.
Nairobi is the national capital of Kenya. As the capital, it is the country’s seat of government. The Bureau’s profile records its population and country context; see the Kenya factbook for the wider national picture.