Vald'Yerre (; before 2023: ''Commune nouvelle d'Arrou'' , literally ''New Commune of Arrou'') is a commune in the
department
Department may refer to:
* Departmentalization, division of a larger organization into parts with specific responsibility
Government and military
*Department (administrative division), a geographical and administrative division within a country, ...
of Eure-et-Loir, north-central France. The municipality was established on 1 January 2017 by merger of the former communes of Arrou (the seat),
Boisgasson
Boisgasson () is a former commune in the Eure-et-Loir department in northern France. On 1 January 2017, it was merged into the new commune Commune nouvelle d'Arrou.Châtillon-en-Dunois, Courtalain,
Langey
Langey () is a former commune in the Eure-et-Loir department in northern France. On 1 January 2017, it was merged into the new commune Commune nouvelle d'Arrou.Saint-Pellerin.Arrêté préfectoral 25 May 2016