Niamey's 2025 population is now estimated at 1,561,490. In 1950, the population of Niamey was 24,370. Niamey has grown by 65,230 in the last year, which represents a 4.36% annual change. These population estimates and projections come from the latest revision of the UN World Urbanization Prospects . These estimates represent the Urban agglomeration of Niamey, which typically includes Niamey's population in addition to adjacent suburban areas.
| City | 2025 Pop. ↓ | Growth |
|---|---|---|
| Zinder | 631,672 | |
| Maradi | 163,487 | |
| Agadez | 124,324 | |
| Alaghsas | 88,561 | |
| Tahoua | 80,425 | |
| Dosso | 49,750 | |
| Birni N Konni | 48,103 | |
| Tessaoua | 35,775 | |
| Gaya | 33,051 | |
| Dogondoutchi | 31,767 | |
| Diffa | 27,948 | |
| Ayorou | 26,290 | |
| Madaoua | 24,804 | |
| Mayahi | 22,183 | |
| Tera | 21,095 | |
| Mirriah | 20,724 | |
| Tibiri | 20,019 | |
| Dakoro | 19,798 | |
| Magaria | 19,419 | |
| Tillaberi | 19,262 | |
| Nguigmi | 17,897 | |
| Matamey | 16,844 | |
| Illela | 16,678 | |
| Tanout | 15,204 | |
| Goure | 14,639 | |
| Abalak | 13,555 | |
| Aguie | 13,152 | |
| Filingue | 11,677 | |
| Maine Soroa | 10,699 | |
| Say | 10,387 | |
| Kollo | 10,376 |
