Yvelines department

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Coat of arms of the Yvelines department
Finistère Côtes-d’Armor Ille-et-Vilaine Morbihan Loire-Atlantique Vendée Manche Mayenne Orne Calvados Maine-et-Loire Sarthe Indre-et-Loire Vienne Deux-Sèvres Indre Loir-et-Cher Eure Eure-et-Loir Seine-Maritime Oise Aisne Somme Pas-de-Calais Nord Ardennes Marne Meuse Meurthe-et-Moselle Haute-Marne Vosges Moselle Haut-Rhin Bas-Rhin Territoire de Belfort Cher Loiret Yonne Aube Côte-d’Or Nièvre Haute-Saône Essonne Yvelines Seine-et-Marne Val-d’Oise Hauts-de-Seine Val-de-Marne Seine-Saint-Denis Paris Doubs Jura Saône-et-Loire Allier Creuse Haute-Vienne Charente Charente-Maritime Corrèze Dordogne Gironde Puy-de-Dôme Loire Rhône Ain Haute-Savoie Cantal Lot Savoie Haute-Loire Isère Ardèche Landes Lot-et-Garonne Hautes-Alpes Drôme Alpes-Maritimes Var Alpes-de-Haute-Provence Vaucluse Bouches-du-Rhône Gard Hérault Lozère Aveyron Tarn Tarn-et-Garonne Gers Pyrènèes-Atlantiques Hautes-Pyrénées Aude Pyrénées-Orientales Haute-Garonne Ariège Haute-Corse Corse-du-Sud Vereinigtes Königreich Andorra Guernsey Jersey Niederlande Belgien Luxemburg Deutschland Liechtenstein Monaco Österreich Schweiz Italien SpanienLocation of the Yvelines department in France
About this picture
region Île-de-France
prefecture Versailles
Sub-prefecture (s) Mantes-la-Jolie
Residents 1,438,266 (Jan. 1, 2017)
Population density 629 inhabitants per km²
surface 2,285.96 km²
Arrondissements 4th
Community associations 11
Cantons 21st
Communities 259
President of the
Department Council
Pierre Bédier
ISO-3166-2 code FR-78
Location of the Yvelines
Location of the department of Yvelines in the
region Ile-de-France

The Yvelines [ iˈvlin ] department is the French department with serial number 78. It is located in the western part of the Île-de-France region in the greater Paris area and is named after the former name of the Rambouillet forest .


The Yvelines department is bordered by the Eure department to the north-west, the Val-d'Oise department to the north, the Hauts-de-Seine department to the east, the Essonne department to the south-east and the Eure-et-Loir department to the west .

The north of the department is traversed by the Seine in a westerly direction . In the south lies the forest of Rambouillet (Fôret de Rambouillet) , the eastern part of which extends into the Regional Nature Park de la Haute-Vallée de Chevreuse .

coat of arms

Description : Golden lilies sown in blue and two slanting silver beams .


Megalithic systems are also found in the Yvelines department . Of the 17 attested to, 8 are still preserved. At least four have been identified at Épône, including the Pierres de La Justice . The Neolithic collective graves have different shapes, all of which can be found in Yvelines: Allée couverte, the dolmens , the hypogeum and unique pieces such as the Allée sépulcrale of Bonnières-sur-Seine . Depending on the size of the complex, they can contain hundreds of burials as well as plenty of grave goods, including cut axes and flint blades , ceramics, bone tools, slate objects and jewelry.


The department was created in 1968 when the Seine-et-Oise department was divided into three smaller departments. The serial number 78 differs from the alphabetical order , as the number of the dissolved department Seine-et-Oise was transferred to Yvelines.


In view of the number of inhabitants that corresponds to that of Munich and a largely contiguous settlement area, the communal structure of Yvelines is highly fragmented. The most populous municipalities in the Yvelines department are:

city Population
Versailles 85,862 Versailles
Sartrouville 51,967 Saint-Germain-en-Laye
Mantes-la-Jolie 44,299 Mantes-la-Jolie
Saint-Germain-en-Laye 44,753 Saint-Germain-en-Laye
Poissy 37,388 Saint-Germain-en-Laye
Conflans-Sainte-Honorine 35,846 Saint-Germain-en-Laye
Montigny-le-Bretonneux 32,929 Versailles
Les Mureaux 32,792 Mantes-la-Jolie
Houilles 32,151 Saint-Germain-en-Laye
Plaisir 31,419 Versailles


The department is represented in the following parliaments:

The Départementrat ( conseil départemental ) of the Yvelines has 42 members ( conseillers départementaux ).

Administrative division

The Yvelines department is divided into 4 arrondissements, 21 cantons and 259 communes:

Communes and arrondissements in the Yvelines department
Arrondissement Cantons Communities Residents
January 1, 2017
Density of
population / km²
Mantes-la-Jolie 5 109 000000000274066.0000000000274.066 759.02 000000000000361.0000000000361 781
Rambouillet 5 83 000000000229105.0000000000229.105 988.74 000000000000232.0000000000232 782
Saint-Germain-en-Laye 10 44 000000000519133.0000000000519.133 351.98 000000000001475.00000000001,475 783
Versailles 9 23 000000000415962.0000000000415,962 186.22 000000000002234.00000000002.234 784
Yvelines department 21st 259 000000001438266.00000000001,438,266 2,285.96 000000000000629.0000000000629 78

See also:


The climate of the Yvelines is a mixture of oceanic influences from the west and continental influences from the east, but weakened by the self-warming of the greater Paris area. It's also not very humid, with an average annual rainfall of just 600mm. The strong westerly winds protect the Yvelines relatively well from air pollution from Paris . Thunderstorm locations are common in summer. The areas on the Seine in the north and south are particularly affected by local deviations (microclimate) .


Yvelines is home to numerous plants in the automotive industry (Citroën, Peugeot, Renault), the aerospace and defense industries, and the chemical and pharmaceutical industries.



Web links

Commons : Yvelines department  - collection of images, videos and audio files

Individual evidence

  1. http://www.yvelines.fr/elus/ accessed on August 12, 2012
  2. Archived copy ( memento of the original from April 7, 2015 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. accessed on May 2, 2015 @1@ 2Template: Webachiv / IABot / www.yvelines.fr

Coordinates: 48 ° 48 '  N , 2 ° 8'  E