Nasiriyah's 2021 population is now estimated at 634,492. In 1950, the population of Nasiriyah was 27,386. Nasiriyah has grown by 17,498 since 2015, which represents a 2.84% 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 Nasiriyah, which typically includes Nasiriyah's population in addition to adjacent suburban areas.