Deir ez-Zor's 2026 population is now estimated at 395,047. In 1950, the population of Deir ez-Zor was 26,387. Deir ez-Zor has grown by 16,461 in the last year, which represents a 4.35% 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 Deir ez-Zor, which typically includes Deir ez-Zor's population in addition to adjacent suburban areas.