Lusaka's 2026 population is now estimated at 3,621,320. In 1950, the population of Lusaka was 31,169. Lusaka has grown by 150,450 in the last year, which represents a 4.33% 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 Lusaka, which typically includes Lusaka's population in addition to adjacent suburban areas.