The new municipality was originally part of Kristians amt (county) when it was established.

On 1 January 1891, the municipality of Solliden was transferred to the neighboring county: Hedemarkens amt.

On 3 November 1917, a royal resolution changed the spelling of the name of the municipality to Solli.

[7] On 18 November 1921, a royal resolution changed the spelling of the name of the municipality to Sollia, effective 1 January 1922.

[9] The municipal council (Herredsstyre) of Sollia was made up of representatives that were elected to four year terms.