Communauté d'agglomération Plaine Vallée
# Communauté d'agglomération Plaine Vallée

Communauté d'agglomération Plaine Vallée is the communauté d'agglomération, an intercommunal structure, covering northwestern suburbs of Paris. It is located in the Val-d'Oise department, in the Île-de-France region, northern France. It was created in January 2016. Its seat is in Montmorency. Its area is 74.1 $km^2.$ Its population was 182,585 in 2018.

## Composition

The communauté d'agglomération consists of the following 18 communes:

* Andilly
* Attainville
* Bouffémont
* Deuil-la-Barre
* Domont
* Enghien-les-Bains
* Ézanville
* Groslay
* Margency
* Moisselles
* Montlignon
* Montmagny
* Montmorency
* Piscop
* Saint-Brice-sous-Forêt
* Saint-Gratien
* Saint-Prix
* Soisy-sous-Montmorency
