Not to be confused with the metropolitan area of Bilbao, which includes this region.Greater Bilbao (Basque: Bilboaldea, Spanish: Gran Bilbao) is an administrative division of the province of Biscay, in the Basque Country, Spain. It is one of the seven comarcas of Biscay and the most populated one. The capital city of Greater Bilbao is Bilbao.