During the 1960s, there were many municipal mergers across Norway due to the work of the Schei Committee. On 1 January 1965, the part of Tustna on the island of Ertvågsøy (population: 85) was transferred to neighboring Aure Municipality to the east. On 1 January 2006, all of Tustna Municipality was merged into Aure Municipality. At its end, Tustna had a population of 1,006.
During the 1960s, there were many municipal mergers across Norway due to the work of the Schei Committee. On 1 January 1965, the part of Tustna on the island of Ertvågsøy (population: 85) was transferred to neighboring Aure Municipality to the east On 1 January 2006, all of Tustna Municipality was merged into Aure Municipality. At its end, Tustna had a population of 1,006.