From 1852 onwards, settlers came to the shores of Lake Manitou because of its beauty. In 1891, Countess Angela Ogier d'Ivry, from
Le Mans (France), bought a farm for her son Viscount Raoul Ogier d'Ivry, who chose the name of the new municipality which formed in 1912 by separating from the parishes of Sainte-Agathe and Saint-Faustin. The post office opened in 1903, designated as Lac-Manitou until 1913 and as Ivry-Nord until 1958. On February 27, 2002, Ivry-sur-le-Lac was amalgamated with
Sainte-Agathe-des-Monts in province-wide municipal reorganizations, but it was reinstated as a municipality on January 1, 2006. ==Demographics==