Kirkuk's 2026 population is now estimated at 1,158,040. In 1950, the population of Kirkuk was 84,289. Kirkuk has grown by 29,850 in the last year, which represents a 2.65% 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 Kirkuk, which typically includes Kirkuk's population in addition to adjacent suburban areas.