During the 1950s, there was a boundary dispute between the neighboring municipalities of Vestre Gausdal and Sør-Fron.

[5] During the 1960s, there were many municipal mergers across Norway due to the work of the Schei Committee.

The river name comes from the verb gjósa which means to "gush", "burst out", or "stream forcefully".

[8] The municipal council (Herredsstyre) of Vestre Gausdal was made up of representatives that were elected to four year terms.

The party breakdown of the final municipal council was as follows: The mayors of Vestre Gausdal (incomplete list):