On 1 January 2018, Lardal Municipality was merged the neighboring Larvik Municipality as part of a nationwide municipal reform. After merging, Larvik was the largest municipality in Vestfold by area and the second-most populous municipality in Vestfold.
On 1 January 2018, Lardal Municipality was merged the neig,hboring Larvik Municipality as part of a nationwide municipal reform. After merging, Larvik was the largest municipality in Vestfold by area and the second-most populous municipality in Vestfold.