Kolwezi's 2021 population is now estimated at 501,375. In 1950, the population of Kolwezi was 31,177. Kolwezi has grown by 6,721 since 2015, which represents a 1.36% 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 Kolwezi, which typically includes Kolwezi's population in addition to adjacent suburban areas.