Detroit's 2021 population is now estimated at 3,530,467. In 1950, the population of Detroit was 2,769,254. Detroit has grown by -17,042 since 2015, which represents a -0.48% 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 Detroit, which typically includes Detroit's population in addition to adjacent suburban areas.