During the 20th century, the town of Gjøvik was growing and twice the town annexed parts of Vardal. On 1 July 1921, an area with 723 residents was taken from Vardal and added to Gjøvik. Then again on 1 July 1955, another area (population: 1,372) was transferred from Vardal to Gjøvik. During the 1960s, there were many municipal mergers across Norway due to the work of the Schei Committee. On 1 January 1964, Vardal Municipality was dissolved and its lands and people were transferred to neighboring municipalities:
