The territory occupied by the parish municipality of Saint-Joseph-de-Lepage was first granted to Gabriel Thivierge and Louis Lepage and became known as the seigneury of Lepage-et-Thivierge. Later, this seigneury became the
Seignory of Rimouski, which for a long time belonged to the Lepage family. The parish of Saint-Joseph-de-Lepage was canonically erected on 21 April 1873. The municipality of Saint-Joseph-de-Lepage was officially created on 29 September 1873, by a detachment from
Sainte-Flavie. The presbytery was built in 1873, and the wooden church was built in 1875. The caisse populaire was founded on March 7, 1940. == Demographics ==