Loum's 2026 population is now estimated at 646,957. In 1950, the population of Loum was 4,802. Loum has grown by 23,621 in the last year, which represents a 3.79% 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 Loum, which typically includes Loum's population in addition to adjacent suburban areas.