Cœur-de-la-Vallée () is a

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 ...

in the

Marne Marne can refer to: Places France *Marne (river), a tributary of the Seine *Marne (department), a département in northeastern France named after the river * La Marne, a commune in western France *Marne, a legislative constituency (France) Nethe ...

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, ...

in north-eastern

France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pac ...

. It was established as a ''

commune nouvelle The () is a level of administrative division in the French Republic. French are analogous to civil townships and incorporated municipalities in the United States and Canada, ' in Germany, ' in Italy, or ' in Spain. The United Kingdom's equ ...

'' on 1 January 2023 from the merger of the communes of Binson-et-Orquigny,

Reuil Reuil () is a former commune in the Marne department in north-eastern France. On 1 January 2023, it was merged into the new commune of Cœur-de-la-Vallée. Population See also *Communes of the Marne department The following is a list of th ...

and

Villers-sous-Châtillon Villers-sous-Châtillon (, literally ''Villers under Châtillon'') is a former commune in the Marne department in north-eastern France. On 1 January 2023, it was merged into the new commune of Cœur-de-la-Vallée. See also *Communes of the Marne ...