Rustenburg's 2021 population is now estimated at 532,711. In 1950, the population of Rustenburg was 13,711. Rustenburg has grown by 23,343 since 2015, which represents a 4.58% 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 Rustenburg, which typically includes Rustenburg's population in addition to adjacent suburban areas.