Ytterøy was established as a municipality on 1 January 1838 (see formannskapsdistrikt). On 1 January 1867, the mainland part of the municipality was separated from Ytterøy to form the new municipality of Mosvik og Verran. This left the municipality of Ytterøy with 1,499 residents on the island of Ytterøya.
On 1 January 1964, the municipality of Ytterøy was merged with the neighboring municipality of Levanger. Prior to the merger, Ytterøy had 772 residents.