Sikasso's 2026 population is now estimated at 510,582. In 1950, the population of Sikasso was 15,695. Sikasso has grown by 22,593 in the last year, which represents a 4.63% 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 Sikasso, which typically includes Sikasso's population in addition to adjacent suburban areas.