Sikasso's 2025 population is now estimated at 487,989. In 1950, the population of Sikasso was 15,695. Sikasso has grown by 21,892 in the last year, which represents a 4.7% 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.