Yvelines

Yvelines
From top down, left to right: prefecture building in Versailles, view of La Celle-Saint-Cloud, forest and lake in Guyancourt, marble courtyard and gardens of the Palace of Versailles
Location of Yvelines in France
Coordinates: 48°50′N 1°55′E / 48.833°N 1.917°E / 48.833; 1.917
CountryFrance
RegionÎle-de-France
PrefectureVersailles
SubprefecturesMantes-la-Jolie
Rambouillet
Saint-Germain-
en-Laye
Government
 • President of the Departmental CouncilPierre Bédier (LR)
Area
 • Total
2,284 km2 (882 sq mi)
Population
 (2023)
 • Total
1,485,086
 • Rank8th
 • Density650.2/km2 (1,684/sq mi)
GDP
 • Total€60.058 billion (2021)
 • Per capita€42,238 (2021)
Time zoneUTC+1 (CET)
 • Summer (DST)UTC+2 (CEST)
Department number78
Arrondissements4
Cantons21
Communes259
^1 French Land Register data, which exclude estuaries and lakes, ponds and glaciers larger than 1 km2.

Yvelines (French pronunciation: [ivlin] ) is a department in the western part of the Île-de-France region in Northern France. In 2019, it had a population of 1,448,207. Its prefecture is Versailles, home to the Palace of Versailles, the principal residence of the King of France from 1682 until 1789, a UNESCO World Heritage Site since 1979. Yvelines' subprefectures are Saint-Germain-en-Laye, Mantes-la-Jolie and Rambouillet.