Jubayl's 2026 population is now estimated at 726,748. In 1950, the population of Jubayl was 5,305. Jubayl has grown by 14,919 in the last year, which represents a 2.1% 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 Jubayl, which typically includes Jubayl's population in addition to adjacent suburban areas.