Communauté d'agglomération Saint Germain Boucles de Seine

The Communauté d'agglomération Saint Germain Boucles de Seine is the communauté d'agglomération, an intercommunal structure, in the western suburbs of Paris. It is located in the Yvelines and Val-d'Oise departments, in the Île-de-France region, northern France. It was created in January 2016. Its seat is in Le Pecq.^[1] Its area is 666.7 km². Its population was 335,109 in 2018.^[2]

Saint Germain Boucles de Seine
Communauté d'agglomération
Country	France
Region	Île-de-France
Department	Val-d'Oise, Yvelines
No. of communes	19
Established	2016
Seat	Le Pecq
Area	139.1 km2 (53.7 sq mi)
Population  (2018)	335,109
• Density	2,409/km2 (6,240/sq mi)

Composition

The communauté d'agglomération consists of the following 19 communes, of which one (Bezons) in the Val-d'Oise department:^[1][3]

1. Aigremont
2. Bezons
3. Carrières-sur-Seine
4. Chambourcy
5. Chatou
6. Croissy-sur-Seine
7. L'Étang-la-Ville
8. Houilles
9. Louveciennes
10. Maisons-Laffitte
11. Mareil-Marly
12. Marly-le-Roi
13. Le Mesnil-le-Roi
14. Montesson
15. Le Pecq
16. Le Port-Marly
17. Saint-Germain-en-Laye
18. Sartrouville
19. Le Vésinet