Bournemouth's 2021 population is now estimated at 510,021. In 1950, the population of Bournemouth was 316,824. Bournemouth has grown by 4,334 since 2015, which represents a 0.86% 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 Bournemouth, which typically includes Bournemouth's population in addition to adjacent suburban areas.