[2] The municipality (Gemeinde) of Tiefenbronn covers 14.79 square kilometers (5.71 sq mi) of the Enzkreis, a district of Baden-Württemberg, Germany.

The buntsandstein of the Röt Formation, under the Black Forest, extends into the municipal area from the west as far east as the border with Heimsheim.

The lowest elevation above sea level, 325 meters (1,066 ft) Normalnull (NN), is found where the Würm forms the border with Pforzheim.

The well's usage as a symbol of the town dates to 1721, but was not made official until 1966, when the municipal pattern and tincture were decided with the advice of the Karlsruhe General State Archives [de].

This coat of arms was approved by the Federal Ministry of the Interior on 30 March 1966 again on 15 February 1979 by the Enz district office after the merging of Lehningen and Mühlhausen into Tiefenbronn in 1972.