The club was found in April 2009 as a farm team of Mladost Zemun under the name ZKK Mladost 2009 (Zemunski košarkaški klub Mladost 2009). In 2014, the club was disaffiliated from Mladost and changed its name to KK Borac Zemun.[1] The club used to play in the 3rd-tierFirst Regional League of Serbia, Center Division.
Borac Zemun plays its home games at the Pinki Hall. The hall is located in the Zemun Municipality in Belgrade and was built in 1974, and renovated in 2015. It has a seating capacity of 5,000 seats.[6]