How many communes does the Yvelines département have?

The Yvelines département (78) has 259 communes.

What is the population of the Yvelines département?

The Yvelines département has approximately 1,470,778 inhabitants (estimated from INSEE data).

What is the crime rate in the Yvelines département?

In 2025, the crime rate in the Yvelines département was 27.6 offences per 1,000 inhabitants (aggregated across all communes). Source: SSMSI.

What is the air quality in the Yvelines département?

According to LCSQA stations (estimated at département centroid, 5-year mean): PM2.5 : 8.9 µg/m³, NO₂ : 14.6 µg/m³, PM10 : 13.8 µg/m³. Source: LCSQA / Géod'air.

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Yvelines

The Yvelines département (78) is a French département, located in the Île-de-France region. It comprises 259 communes over 2,305 km², with approximately 1,470,778 inhabitants (INSEE). Cadastral map, parcels and open data on La Grande Carte.

See also Île-de-France

Communes in this department (259)

Ablis Achères Adainville Aigremont Allainville Alluets-le-Roi Andelu Andrésy Arnouville-lès-Mantes Aubergenville Auffargis Auffreville-Brasseuil Aulnay-sur-Mauldre Auteuil Autouillet Bailly Bazainville Bazemont Bazoches-sur-Guyonne Béhoust Bennecourt Beynes Blaru Boinville-en-Mantois Boinville-le-Gaillard Boinvilliers Bois-d'Arcy Boissets Boissière-École Boissy-Mauvoisin Boissy-sans-Avoir Bonnelles Bonnières-sur-Seine Bouafle Bougival Bourdonné Breuil-Bois-Robert Bréval Bréviaires Brueil-en-Vexin Buc Buchelay Bullion Carrières-sous-Poissy Carrières-sur-Seine Celle-les-Bordes Celle-Saint-Cloud Cernay-la-Ville Chambourcy Chanteloup-les-Vignes Chapet Châteaufort Chatou Chaufour-lès-Bonnières Chavenay Chesnay Chevreuse Choisel Civry-la-Forêt Clairefontaine-en-Yvelines Clayes-sous-Bois Coignières Condé-sur-Vesgre Conflans-Sainte-Honorine Courgent Cravent Crespières Croissy-sur-Seine Dammartin-en-Serve Dampierre-en-Yvelines Dannemarie Davron Drocourt Ecquevilly Élancourt Émancé Épône Essarts-le-Roi Étang-la-Ville Évecquemont Falaise Favrieux Feucherolles Flacourt Flexanville Flins-Neuve-Église Flins-sur-Seine Follainville-Dennemont Fontenay-le-Fleury Fontenay-Mauvoisin Fontenay-Saint-Père Freneuse Gaillon-sur-Montcient Galluis Gambais Gambaiseuil Garancières Gargenville Gazeran Gommecourt Goupillières Goussonville Grandchamp Gressey Grosrouvre Guernes Guerville Guitrancourt Guyancourt Hardricourt Hargeville Hauteville Herbeville Hermeray Houdan Houilles Issou Jambville Jeufosse Jouars-Pontchartrain Jouy-en-Josas Jouy-Mauvoisin Jumeauville Juziers Lainville-en-Vexin Lévis-Saint-Nom Limay Limetz-Villez Loges-en-Josas Lommoye Longnes Longvilliers Louveciennes Magnanville Magny-les-Hameaux Maisons-Laffitte Mantes-la-Jolie Mantes-la-Ville Marcq Mareil-le-Guyon Mareil-Marly Mareil-sur-Mauldre Marly-le-Roi Maule Maulette Maurecourt Maurepas Médan Ménerville Méré Méricourt Mesnil-le-Roi Mesnil-Saint-Denis Mesnuls Meulan-en-Yvelines Mézières-sur-Seine Mézy-sur-Seine Millemont Milon-la-Chapelle Mittainville Moisson Mondreville Montainville Montalet-le-Bois Montchauvet Montesson Montfort-l'Amaury Montigny-le-Bretonneux Morainvilliers Mousseaux-sur-Seine Mulcent Mureaux Neauphle-le-Château Neauphle-le-Vieux Neauphlette Nézel Noisy-le-Roi Oinville-sur-Montcient Orcemont Orgerus Orgeval Orphin Orsonville Orvilliers Osmoy Paray-Douaville Pecq Perdreauville Perray-en-Yvelines Plaisir Poigny-la-Forêt Poissy Ponthévrard Porcheville Port-Marly Prunay-en-Yvelines Prunay-le-Temple Queue-les-Yvelines Raizeux Rambouillet Rennemoulin Richebourg Rochefort-en-Yvelines Rolleboise Rosay Rosny-sur-Seine Sailly Saint-Arnoult-en-Yvelines Saint-Cyr-l'École Sainte-Mesme Saint-Forget Saint-Germain-de-la-Grange Saint-Germain-en-Laye Saint-Hilarion Saint-Illiers-la-Ville Saint-Illiers-le-Bois Saint-Lambert Saint-Léger-en-Yvelines Saint-Martin-de-Bréthencourt Saint-Martin-des-Champs Saint-Martin-la-Garenne Saint-Nom-la-Bretèche Saint-Rémy-lès-Chevreuse Saint-Rémy-l'Honoré Sartrouville Saulx-Marchais Senlisse Septeuil Soindres Sonchamp Tacoignières Tartre-Gaudran Tertre-Saint-Denis Tessancourt-sur-Aubette Thiverval-Grignon Thoiry Tilly Toussus-le-Noble Trappes Tremblay-sur-Mauldre Triel-sur-Seine Vaux-sur-Seine Vélizy-Villacoublay Verneuil-sur-Seine Vernouillet Verrière Versailles Vert Vésinet Vicq Vieille-Église-en-Yvelines Villeneuve-en-Chevrie Villennes-sur-Seine Villepreux Villette Villiers-le-Mahieu Villiers-Saint-Frédéric Viroflay Voisins-le-Bretonneux

Frequently asked questions

How many communes does the Yvelines département have?: The Yvelines département (78) has 259 communes.
What is the population of the Yvelines département?: The Yvelines département has approximately 1,470,778 inhabitants (estimated from INSEE data).
What is the crime rate in the Yvelines département?: In 2025, the crime rate in the Yvelines département was 27.6 offences per 1,000 inhabitants (aggregated across all communes). Source: SSMSI.
What is the air quality in the Yvelines département?: According to LCSQA stations (estimated at département centroid, 5-year mean): PM2.5 : 8.9 µg/m³, NO₂ : 14.6 µg/m³, PM10 : 13.8 µg/m³. Source: LCSQA / Géod'air.