Mbuji-Mayi's 2026 population is now estimated at 3,298,080. In 1950, the population of Mbuji-Mayi was 67,641. Mbuji-Mayi has grown by 139,740 in the last year, which represents a 4.42% 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 Mbuji-Mayi, which typically includes Mbuji-Mayi's population in addition to adjacent suburban areas.