Denver-Aurora's 2021 population is now estimated at 2,862,458. In 1950, the population of Denver-Aurora was 504,709. Denver-Aurora has grown by 35,779 since 2015, which represents a 1.27% 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 Denver-Aurora, which typically includes Denver-Aurora's population in addition to adjacent suburban areas.