Manisa's 2025 population is now estimated at 419,194. In 1950, the population of Manisa was 17,165. Manisa has grown by 6,163 in the last year, which represents a 1.49% 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 Manisa, which typically includes Manisa's population in addition to adjacent suburban areas.