Les Sables-d'Olonne
The arrondissement of Les Sables-d'Olonne was created in 1800. At the January 2017 reorganisation of the arrondissements of Vendée, it lost eight communes to the arrondissement of La Roche-sur-Yon. In January 2019 the commune Landeronde passed from the arrondissement of Les Sables-d'Olonne to the arrondissement of La Roche-sur-Yon.