Mbeya's 2025 population is now estimated at 712,316. In 1950, the population of Mbeya was 3,770. Mbeya has grown by 32,191 in the last year, which represents a 4.73% 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.