Bilbao's 2021 population is now estimated at 348,518. In 1950, the population of Bilbao was 227,488. Bilbao has grown by -1,115 since 2015, which represents a -0.32% 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 Bilbao, which typically includes Bilbao's population in addition to adjacent suburban areas.