Basque Country Demographics

Almost half of the 2,155,546 inhabitants of the Basque Autonomous Community live in the Bilbao metropolitan area, almost the entirety of the province of Biscay. Six of the ten most populous cities in the region form part of Bilbao’s conurbation (Bilbao, Barakaldo, Getxo, Portugalete, Santurtzi and Basauri), which is widely known as Greater Bilbao.

With 28.2% of the Basque population born outside this region, immigration is crucial to Basque demographics. Over the 20th century most of this immigration came from other parts of Spain, typically from Galicia or Castile and León. Over recent years, sizeable numbers of this population have returned to their birthplaces and most immigration to the Basque country now comes from abroad, chiefly from South America.

As of 2018, there were 151,519 foreigners in the Basque country, 7% of the population.

Roman Catholicism is, by far, the largest religion in Basque Country. In 2019, the proportion of Basques that identify themselves as Roman Catholic was 60%, while it is one of the most secularised communities of Spain: 24.6% were non-religious and 12.3% of Basques were atheist.

Basque Country Major cities

Largest cities or towns in Basque Country Rank                                                                 Province                         Population                       1BilbaoBiscay351,629 2Vitoria-GasteizÁlava245,036 3San SebastiánGipuzkoa       186,409 4BarakaldoBiscay100,369 5GetxoBiscay80,026 6IrunGipuzkoa        61,102 7PortugaleteBiscay47,756 8SanturtziBiscay47,129 9BasauriBiscay41,971 10ErrenteriaGipuzkoa        39,324 11LeioaBiscay30,626 12GaldakaoBiscay29,130 13SestaoBiscay28,831 14DurangoBiscay28,618 15EibarGipuzkoa         27,507 16ErandioBiscay24,326 17ZarautzGipuzkoa         22,650 18MondragónGipuzkoa22,027 19Hernani    Gipuzkoa          19,284 20LlodioÁlava18,498 

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