Bujumbura's 2025 population is now estimated at 1,350,150. In 1950, the population of Bujumbura was 18,825. Bujumbura has grown by 73,100 in the last year, which represents a 5.72% 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.