On 1 January 1964, the neighboring municipalities of Hølonda (population: 1,428), Horg (population: 2,560), Flå (population: 843), Melhus (population: 3,978), and the Langørgen farm (population: 11) in Buvik were all merged to form a new, larger municipality of Melhus.
On January 1, 1964, the municipalities of Hølonda, Horg, Flå, Melhus, and Langørgen farm (population: 1,428, 2,560, 843, 3,978, and 11 respectively) in Buvik were amalgamated to form a new, larger municipality called Melhus.