Bujumbura's 2021 population is now estimated at 1,074,642. In 1950, the population of Bujumbura was 18,825. Bujumbura has grown by 61,646 since 2015, which represents a 6.09% 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 Bujumbura, which typically includes Bujumbura's population in addition to adjacent suburban areas.