Mbeya's 2026 population is now estimated at 746,046. In 1950, the population of Mbeya was 3,770. Mbeya has grown by 33,730 in the last year, which represents a 4.74% 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 Mbeya, which typically includes Mbeya's population in addition to adjacent suburban areas.