Ibb's 2026 population is now estimated at 883,243. In 1950, the population of Ibb was 2,906. Ibb has grown by 35,893 in the last year, which represents a 4.24% 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 Ibb, which typically includes Ibb's population in addition to adjacent suburban areas.