Saint-Illiers-la-Ville

Lommoye (French pronunciation: [lɔmwa]) is a commune in the Yvelines department in the Île-de-France region in north-central France.

Boissy-Mauvoisin is a commune in the Yvelines department in north-central France.

La Villeneuve-en-Chevrie is a commune in the Yvelines department in the Île-de-France region in north-central France.

Jeufosse is a former commune in the Yvelines department in the Île-de-France region in north-central France. On 1 January 2019, it was merged into the new commune Notre-Dame-de-la-Mer.

Notre-Dame-de-la-Mer is a commune in the Yvelines department in the Île-de-France region in north-central France. It was established on 1 January 2019 by merger of the former communes of Jeufosse (the seat) and Port-Villez.

The canton of Bonnières-sur-Seine is an administrative division of the Yvelines department, northern France. Its borders were modified at the French canton reorganisation which came into effect in March 2015. Its seat is in Bonnières-sur-Seine.It consists of the following communes:

Ménerville (French pronunciation: [menɛʁvil]) is a commune in the Yvelines department in the Île-de-France region in north-central France.

Bennecourt (French pronunciation: [bɛnkuʁ]) is a commune in the Yvelines department in north-central France.

Chaufour-lès-Bonnières (French pronunciation: [ʃofuʁ lɛ bɔnjɛʁ], literally Chaufour near Bonnières) is a commune in the Yvelines department in the Île-de-France region in north-central France.

Bonnières-sur-Seine (French pronunciation: [bɔnjɛʁ syʁ sɛn], literally Bonnières on Seine) is a commune in the Yvelines department in north-central France.

Longnes is a commune in the Yvelines department in the Île-de-France region in north-central France.

Le Tertre-Saint-Denis (French pronunciation: [lə tɛʁtʁ sɛ̃ dəni]) is a commune in the Yvelines department in the Île-de-France in north-central France.