Douai Lens's 2021 population is now estimated at 500,921. In 1950, the population of Douai Lens was 533,572. Douai Lens has grown by 145 since 2015, which represents a 0.03% 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 Douai Lens, which typically includes Douai Lens's population in addition to adjacent suburban areas.