Bujumbura's 2026 population is now estimated at 1,426,040. In 1950, the population of Bujumbura was 18,825. Bujumbura has grown by 75,890 in the last year, which represents a 5.62% 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.