Neuenbürg is a town in the Enz district, in Baden-Württemberg, Germany. It is situated on the river Enz, 10 km southwest of Pforzheim. Neuenbürg originated as a village around a castle built by the House of Vaihingen in the 12th century. Between 1315 and 1322, Neuenbürg became a possession of the Counts of Württemberg, who gave it town rights. With the villages of Arnbach, Dennach, and Waldrennach, Neuenbürg was assigned its own district. On 18 March 1806, that district was reorganized as Oberamt Neuenbürg. The Oberamt was dissolved on 1 October 1938 and its constituents were assigned to the Calw district. When the Enz district was created by the 1973 Baden-Württemberg district reform on 1 January 1973, Neuenbürg and its villages were assigned to it. Arnbach, Dennach, and Waldrennach were fully incorporated into Neuenbürg on 1 January 1975.