Château-d'Olonne () is a former

commune A commune is an alternative term for an intentional community. Commune or comună or comune or other derivations may also refer to: Administrative-territorial entities * Commune (administrative division), a municipality or township ** Communes of ...

of the

Vendée Vendée (; br, Vande) is a department in the Pays de la Loire region in Western France, on the Atlantic coast. In 2019, it had a population of 685,442.

department in the Pays de la Loire

region In geography, regions, otherwise referred to as zones, lands or territories, are areas that are broadly divided by physical characteristics ( physical geography), human impact characteristics ( human geography), and the interaction of humanity an ...

of Western

France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of overseas regions and territories in the Americas and the Atlantic, Pacific and Indian Oceans. Its metropolitan area ...

. On 1 January 2019, it was merged into the commune of

Les Sables-d'Olonne Les Sables-d'Olonne (; French meaning: "The Sands of Olonne"; Poitevin: ''Lés Sablles d'Oloune'') is a seaside town in Western France, on the Atlantic Ocean. A subprefecture of the department of Vendée, Pays de la Loire, it has the administ ...

.Arrêté préfectoral
17 August 2018

References

Former communes of Vendée Populated coastal places in France {{Vendée-geo-stub