Rouen's 2021 population is now estimated at 471,073. In 1950, the population of Rouen was 312,341. Rouen has grown by 1,069 since 2015, which represents a 0.23% 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 Rouen, which typically includes Rouen's population in addition to adjacent suburban areas.