Durmersheim is a small town in the district of Rastatt, Baden-Württemberg, Southwest Germany and has a population of 12,049 (2005).Durmersheim is situated between Karlsruhe and Rastatt, in the valley of the river Rhine near the border to France. There is also a forest in the valley, named Hardtwald, c. 2 km east of the town.The 27 kilometres long Federbach River flows from south to north through the town.