Kikwit's 2026 population is now estimated at 640,934. In 1950, the population of Kikwit was 4,997. Kikwit has grown by 25,742 in the last year, which represents a 4.18% 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.