Izmir's 2025 population is now estimated at 3,152,090. In 1950, the population of Izmir was 223,824. Izmir has grown by 31,750 in the last year, which represents a 1.02% 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 Izmir, which typically includes Izmir's population in addition to adjacent suburban areas.