Gundelfingen is one of the larger municipalities in the Breisgau-Hochschwarzwald district. It consists of the old place Gundelfingen and the village Wildtal, which was included in the municipality in the 1970s.
Gundelfingen was founded in the 4th century, so at least the suffix "-ingen" suggests. The name means that some Alamannic chief by the name of Gundolf settled there with his folk. The first sure sign of Gundelfingen's existence is found in a 1008 treaty, where a place called Gondalvingen is named.
In 1327, Gundelfingen was sold by Counts Konrad and Friedrich of Freiburg to Schnewelin Bernlapp. In 1507, his successor Balthasar von Blumeneck sold Gundelfingen again, this time to Margrave Christopher I of Baden. Since then it was part of Baden.
In the 16th century, some 350 inhabitants lived in Gundelfingen. In 1825 it was 620, in 1950 1,817. Only in the 1960s and 1970s the numbers started to expand quickly to 5,016 inhabitants in 1970 and 11,000 inhabitants in 2002.