Duisburg's 2025 population is now estimated at 528,993. In 1950, the population of Duisburg was 411,198. Duisburg has grown by 1,726 in the last year, which represents a 0.33% 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 Duisburg, which typically includes Duisburg's population in addition to adjacent suburban areas.