Zahedan's 2021 population is now estimated at 616,511. In 1950, the population of Zahedan was 10,389. Zahedan has grown by 6,638 since 2015, which represents a 1.09% 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 Zahedan, which typically includes Zahedan's population in addition to adjacent suburban areas.