Saint-Isidore-de-Clifton

The earliest known name for Saint Isidore d'Auckland was the name of Popeville, formed from the surname of Pope which the surname of the president of the Cookshire branch of the Standard Chemical Company. Later the name of Saint Isidore d'Auckland was established, the Saint Isidore part was chosen to honor Isidore of Seville who was bishop of Seville in 600. The Auckland part of the name was added in 1806 and probably comes from a toponym added by William Eden, 1st Baron Auckland after he was named man of state commissioner in North America in 1778 in order to settle border disputes following American independence. Saint Isidore d'Auckland was established canonically in 1904 with the foundation of the catholic parish of Saint Isidore and was established civilly the year after. The post office was later established in 1911.

the Municipality of Clifton Partie Est was named after the village of Clifton in Gloucestershire in 1799. Clifton is now a suburb of Bristol and the name of Bristol's of one of the city's thirty five council wards. In 1873 the township of Clifton was subdivided into the municipality of the township of Clifton and the municipality of the east part of the township of Clifton (Clifton Partie Est).

Saint Isidore de Clifton used to be two separate municipalities of the Municipalité de Saint Isidore d'Auckland and the Clifton Partie Est until they were merged into the Municipalité de Saint Isidore de Clifton on the 24 December 1997. The name Clifton Partie Est is now used to refer to a part of Saint Isidore de Clifton which corresponds to the old territory of Clifton Partie Est.