On 28 November 1874, two uninhabited parts of the neighboring Skogn Municipality were transferred to Levanger landsogn by a royal resolution.
On 13 November 1951, the Lillemarksbakkene area in Frol Municipality (population: 51) was transferred to the town of Levanger.
[12] The second word landsogn simply meant "rural area" (to distinguish it from the neighboring town of Levanger).
The new name came from the old Frol skipreide (Old Norse: Fról) which was a medieval administrative division of Norway.
At the time of the municipal dissolution, it was part of the Levanger prestegjeld and the Sør-Innherad prosti (deanery) in the Diocese of Nidaros.
The municipal council (Herredsstyre) of Frol was made up of 21 representatives that were elected to four year terms.
The tables below show the historical composition of the council by political party.