The square's central Town Hall was built between 1745 and 1761 but was never used for administrative or commercial purposes as originally intended.
The square is situated on the historical road connecting the cities of Warsaw and Grodno.
The current name honors Tadeusz Kościuszko, a Polish-Lithuanian military leader and hero of the American Revolutionary War.
During the interwar period, the square was known as Marshal Józef Piłsudski Square.
The buildings surrounding the square were heavily reconstructed after suffering significant damage during World War II.
The square functions as a transition point between the urban center and the extensive grounds of the Branicki Palace, a UNESCO-nominated site.
The current layout includes a subterranean archaeological exhibition displaying remnants of the city's early foundations.
Kosciuszko Market Square serves as the historical heart of Białystok, functioning as the city's central pedestrianized plaza. The square is anchored by the 18th-century Town Hall, which currently houses the Podlasie Museum. It is surrounded by restored tenement houses that reflect the city's architectural evolution. The layout transitions from a traditional market space into a vibrant leisure hub lined with cafes, restaurants, and public seating. Notable features include the Saint Roch church vista and the nearby Branicki Palace park complex. The space frequently hosts municipal events, local festivals, and open-air markets. It acts as a primary junction for the city’s walking trails and cultural routes.
The elevated steps near the Town Hall provide an ideal vantage point for panoramic shots of the surrounding tenement facades.
Visit during the early morning to photograph the architecture without crowds.
Walk the full length of the square to see the contrast between the historic Town Hall and the modern glass-fronted library nearby.
Check the local municipal calendar for food festivals that often utilize the square's open space.
Avoid dining strictly at the tourist-facing front-row restaurants, as deeper side streets often offer more authentic regional Podlasie cuisine.
The square is a public pedestrian space open year-round, though some seasonal market stalls are restricted to warmer months.
