Pietermaritzburg's 2021 population is now estimated at 532,766. In 1950, the population of Pietermaritzburg was 89,712. Pietermaritzburg has grown by 5,854 since 2015, which represents a 1.11% 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 Pietermaritzburg, which typically includes Pietermaritzburg's population in addition to adjacent suburban areas.