Over the course of the 14th century, Wildberg became a possession of the Electoral Palatinate, who sold it and the towns of Schönbronn, Sulz am Eck, and Gültlingen to the County of Württemberg in 1440.

These towns would exist in their own district until 1807, when the government of the Kingdom of Württemberg assigned them to Oberamt Nagold [de], which was dissolved in 1938 and replaced by Landkreis Calw.

After World War II, Effringen, Gültlingen and Sulz am Eck established new residential areas but it was not until the 1970s that Wildberg also began growing.

Wildberg is physically located in the valley of the Nagold, between the Northern Black Forest to the west and the Upper Gäu [de] to the east.

The fields and the overall red-white tincture are taken from the arms of the Counts of Hohenberg and first began appearing in town seals in 1297.