Mwanza's 2026 population is now estimated at 1,518,810. In 1950, the population of Mwanza was 12,751. Mwanza has grown by 71,470 in the last year, which represents a 4.94% 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 Mwanza, which typically includes Mwanza's population in addition to adjacent suburban areas.