Bologna's 2021 population is now estimated at 808,931. In 1950, the population of Bologna was 570,263. Bologna has grown by 2,945 since 2015, which represents a 0.37% 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 Bologna, which typically includes Bologna's population in addition to adjacent suburban areas.