Saint-Bonnet-en-Champsaur (Occitan: Sant Bonet; named for Saint Bonitus, before 1988: Saint-Bonnet)[3] is a commune in the Hautes-Alpes department in southeastern France.

The commune forms a triangle of which the base is the Drac and the apex is Queyrel Peak.

Located in the Haut-Dauphiné, Saint-Bonnet-en-Champsaur's climate is a mix of the Mediterranean and alpine.

The population data in the table and graph below refer to the commune of Saint-Bonnet-en-Champsaur proper, in its geography at the given years.

In 1935, Vivian and her mother, Maria, were living in Saint-Julien-en-Champsaur and prior to 1940 returned to New York City.