 After the Second World War, the town of Dornhan fell into the French occupation zone and thus came to the newly founded state Württemberg-Hohenzollern in 1947, which was absorbed into the state of Baden-Württemberg in 1952.In 1973, the District Reform in Baden-Württemberg took place, in which Dornhan became part of the district of Rottweil.Today's town was newly formed on 1 March 1972 by merging the town of Dornhan with the communities of Bettenhausen, Fürnsal, Leinstetten and Marschalkenzimmer.