[8] During the 1960s, there were many municipal mergers across Norway due to the work of the Schei Committee.

[8] The municipality (originally the parish) is named after the old Jøssund farm (Old Norse: Mjórsund).

The old name did originally start with an "m", but over time the initial letter disappeared from the spelling and pronunciation (sometime before the early 16th century).

At the time of the municipal dissolution, it was part of the Åfjord prestegjeld and the Fosen prosti (deanery) in the Diocese of Nidaros.

The highest point in the municipality was the 492.5-metre (1,616 ft) tall mountain Seksortklumpen.

The municipal council (Herredsstyre) of Jøssund was made up of 17 representatives that were elected to four year terms.