As of July 2026, the population of Niger is 28.8 million. The number of inhabitants has increased by 903 thousand in the last year, representing a growth of 3.21%. The median age of the population has increased in recent years, rising from 14.4 years in 2016 to 15.7 years in 2026. Currently, life expectancy at birth is 61.9 years and population density is 22.7 inhabitants per square kilometer.
The population growth rate of Niger peaked in 2012, reaching around 3.83% annually, but has since declined to approximately 3.13% in 2026. However, the annual increase in the number of people continues to rise, reaching around 903.2 thousand in 2026.
In Niger, life expectancy at birth has been increasing, with the indicator rising from 54.2 years in 2006 to 61.9 years in 2026, representing an increase of almost 8 years over the past 2 decades.
The cities of Niger are mostly small, but 6 stand out with more than 100 thousand inhabitants. The most populous city is Niamey, con una diferencia significativa sobre las demás, alcanzando approximately 1.3 million inhabitants. It is followed by Maradi, Maradi Region with 361.7 thousand and Zinder, Zinder Region with 318.9 thousand.
These are the 20 most populous cities in Niger:
| # | City | Population |
|---|---|---|
| 1 | Niamey | 1,323,691 |
| 2 | Maradi, Maradi Region | 361,702 |
| 3 | Zinder, Zinder Region | 318,874 |
| 4 | Tahoua, Tahoua Region | 159,468 |
| 5 | Agadez | 149,549 |
| 6 | Arlit, Agadez | 106,448 |
| 7 | Alaghsas, Agadez | 88,561 |
| 8 | Birni N Konni, Tahoua Region | 85,494 |
| 9 | Dosso, Dosso Region | 79,406 |
| 10 | Gaya, Dosso Region | 61,533 |
| # | City | Population |
|---|---|---|
| 11 | Tessaoua, Maradi Region | 58,750 |
| 12 | Diffa | 54,082 |
| 13 | Dogondoutchi, Dosso Region | 50,037 |
| 14 | Méhana, Tillabéri Region | 40,593 |
| 15 | Dakoro, Maradi Region | 39,645 |
| 16 | Téra, Tillabéri Region | 39,410 |
| 17 | Mirriah, Zinder Region | 38,446 |
| 18 | Madaoua, Tahoua Region | 37,858 |
| 19 | Matamey, Zinder Region | 37,374 |
| 20 | Magaria, Zinder Region | 35,091 |