Huambo's 2021 population is now estimated at 687,795. In 1950, the population of Huambo was 15,306. Huambo has grown by 16,382 since 2015, which represents a 2.44% 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 Huambo, which typically includes Huambo's population in addition to adjacent suburban areas.