The existence of the town was first documented in 1124. In 1249 Gartz was granted town privileges by DukeBarnim I of Pomerania. Because of its strategic location on the river, the town was frequently vulnerable during military campaigns.
Since the Oder-Neisse line was made the German-Polish border in 1945, Gartz is now a border town.
Development of population since 1875 within the current boundaries (Blue line: Population; Dotted line: Comparison to population development of Brandenburg state; Grey background: Time of Nazi rule; Red background: Time of communist rule)
Population development within the current boundaries (2013)