The municipality of Nordli established on 1 July 1915 when the old municipality of Lierne was split in two parts: Nordli and Sørli. The old municipality of Lierne was created on 1 January 1874 when it separated from Snåsa. Initially, Nordli had a population of 863. On 1 January 1964, Sørli and Nordli were reunited to once again form the municipality of Lierne. Prior to the merger, Nordli had a population of 1,147.