Aba's 2021 population is now estimated at 1,114,388. In 1950, the population of Aba was 48,488. Aba has grown by 32,922 since 2015, which represents a 3.04% 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 Aba, which typically includes Aba's population in addition to adjacent suburban areas.