Before the Bosnian War, Sapna was part of the Zvornik municipality. But, as a result of the Dayton Agreement, the Zvornik municipality was divided between the two entities, Federation of Bosnia and Herzegovina and Republika Srpska, so Sapna became a municipality itself, comprising the portion of Zvornik municipality that remained in the Federation of BiH. Sapna officially became a municipality on March 8, 1998.