Kikwit's 2025 population is now estimated at 615,192. In 1950, the population of Kikwit was 4,997. Kikwit has grown by 24,395 in the last year, which represents a 4.13% 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.