The district was created in 1973, when the previous district Pforzheim was merged with parts of the neighboring districts Vaihingen, Leonberg and Calw. Some part of the district Pforzheim was included into the city Pforzheim.
The district Pforzheim dates back to 1939, when the Bezirksamt Pforzheim was split into the district and the district-free city.
The south of the Enz district covers the northern part of the Black Forest. In the north-west of the district is the Kraichgau, a mainly agricultural area. The main river is the Enz, a tributary of the Neckar.
The four diamonds in the coat of arms represent the four historic territories covered by the district: the Black Forest, the Heckengäu, Kraichgau and Stromberg. The wavy line in the middle represent the river Enz, which also gave the name to the district.