Grand Duchy of Baden State Railway
The first Pforzheim station was opened on the 3 July 1861 on the Karlsruhe–Mühlacker railway by the Grand Duchy of Baden State Railway ("Großherzoglich Badische Staatseisenbahnen"). With the opening of the Enz Valley Railway ("Enztalbahn") to Wildbad (11 June 1868) and the Nagold Valley Railway ("Nagoldtalbahn") to Horb (1 June 1874), Pforzheim developed into an interchange station with considerable traffic. Both lines were operated by the Royal Württemberg State Railways ("Königlich Württembergischen Staats-Eisenbahnen") and they received their own platform tracks to the west of the station.