City of Bielsko-Biała

Bielsko-Biała is a city in southern Poland, with a population of approximately 166,765 as of December 2022, making it the 22nd largest city in Poland, and an area of 124.51 km2. It is the core of the broader metropolitan area with around 335,000 inhabitants. It serves as the seat of the Bielsko County, Euroregion Beskydy, Roman Catholic Diocese of Bielsko–Żywiec and the Evangelical Church Diocese of Cieszyn.

Situated north of the Beskid Mountains, Bielsko-Biała is composed of two former towns which merged in 1951—Bielsko in the west and Biała in the east—on opposite banks of the Biała River that once divided Silesia and Lesser Poland. The history of Bielsko dates back to the 13th century, while Biała was founded in the 16th century and obtained city rights in 1723.