As of May 2026, the population of Burundi is 14.2 million. The number of inhabitants has increased by 362 thousand in the last year, representing a growth of 2.58%. The median age of the population has increased in recent years, rising from 15.2 years in 2016 to 16.8 years in 2026. Currently, life expectancy at birth is 63.6 years and population density is 551.4 inhabitants per square kilometer.
The population growth rate of Burundi peaked in 1994, reaching around 11.18% annually, but has since declined to approximately 2.53% in 2026. The annual increase in the number of people has also decreased from a peak of around 623.81 thousand in 1994 to nearly 362.03 thousand in 2026.
In Burundi, life expectancy at birth has been increasing, with the indicator rising from 53.9 years in 2006 to 63.6 years in 2026, representing an increase of almost 10 years over the past 2 decades.
The cities of Burundi are small, with the 5 most populated adding up to around 1 million inhabitants. The most populous city is Bujumbura, Bujumbura Mairie, con una diferencia significativa sobre las demás, alcanzando approximately 769.3 thousand inhabitants. It is followed by Gitega with 64.9 thousand and Ngozi with 61.7 thousand.
These are the 20 most populous cities in Burundi:
| # | City | Population |
|---|---|---|
| 1 | Bujumbura, Bujumbura Mairie | 769,317 |
| 2 | Gitega | 64,904 |
| 3 | Ngozi | 61,716 |
| 4 | Mpanda, Bubanza | 58,913 |
| 5 | Rumonge | 55,599 |
| 6 | Cibitoke | 36,959 |
| 7 | Kayanza | 33,682 |
| 8 | Cendajuru, Cankuzo | 32,458 |
| 9 | Bubanza | 30,996 |
| 10 | Vyanda, Bururi | 29,685 |
| # | City | Population |
|---|---|---|
| 11 | Zanandore, Gitega | 27,867 |
| 12 | Gatumba, Bujumbura Rural | 18,104 |
| 13 | Karusi, Gitega | 15,964 |
| 14 | Kirundo | 15,511 |
| 15 | Muyinga | 14,869 |
| 16 | Makamba | 14,539 |
| 17 | Ruyigi | 11,046 |
| 18 | Rutana | 9,075 |
| 19 | Muramvya, Gitega | 8,445 |
| 20 | Isale, Bujumbura Rural | 7,701 |