Bielsko-Biała (listen) is a city in southern Poland with a population of approximately 170,663 as of 2019 and an area of 124.5 km2 (48.1 sq mi). The city is a centre of the Bielsko Urban Agglomeration with 325,000 inhabitants and is an industrial (automotive), transport, and tourism hub of the Bielsko Industrial Region. Located north of the Beskid Mountains, Bielsko-Biała is composed of two former cities on opposite banks of the Biała River, Silesian Bielsko and Lesser Poland's Biała, which merged in 1951. Between 1975 and 1998, it was the seat of the Bielsko Voivodeship. Currently, the city lies witihn the Silesian Voivodeship.