Zinder's 2021 population is now estimated at 515,736. In 1950, the population of Zinder was 12,466. Zinder has grown by 26,558 since 2015, which represents a 5.43% 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 Zinder, which typically includes Zinder's population in addition to adjacent suburban areas.