Żoliborz (Polish pronunciation: [ʐɔˈlʲibɔʂ]) is one of the northern districts of the city of Warsaw. It is located directly to the north of the City Centre, on the left bank of the Vistula river. It has approximately 50,000 inhabitants and is one of the smallest boroughs of Warsaw. Historically an upscale neighbourhood and home to Warsaw's intelligentsia prior to World War II, Żoliborz is the second most expensive residential district in Warsaw after Śródmieście.