Bonn's 2021 population is now estimated at 320,190. In 1950, the population of Bonn was 201,135. Bonn has grown by -4 since 2015, which represents a -0.00% 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 Bonn, which typically includes Bonn's population in addition to adjacent suburban areas.