Niamey's 2026 population is now estimated at 1,633,200. In 1950, the population of Niamey was 24,370. Niamey has grown by 71,710 in the last year, which represents a 4.59% 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.