The municipality of Kieselbronn is located in the Enz district, within the state of Baden-Württemberg and Federal Republic of Germany. The municipal area covers. It is situated in the Kraichgauregion, whose geology is made up largely of muschelkalk partially overlaid with loess, and sits above the Lettenkeuper Formation. The primary source of water in the municipal area is the Schlupfgraben, a tributary of the Enz that flows through the municipality from north to east. The center of the town of Kieselbronn is the highest point in the municipality at. The lowest elevation is at the border with the municipality of Mühlacker.
Coat of arms
Kieselbronn's coat of arms depicts a golden duck's foot upon a field of red. The duck foot is a municipal motif that dates back to 1704 and began appearing on local boundary stones and seals at the end of the 18th century. The Baden State Archives gave the coat of arms its red and gold coloring in 1907 to match the coat of arms for the Grand Duchy of Baden.