Kikwit's 2021 population is now estimated at 526,217. In 1950, the population of Kikwit was 4,997. Kikwit has grown by 18,755 since 2015, which represents a 3.70% 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 Kikwit, which typically includes Kikwit's population in addition to adjacent suburban areas.