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Guyancourt

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Guyancourt

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Guyancourt () is a commune in the Yvelines department in the Île-de-France region in north-central France. It is located in the south-western suburbs of Paris, from the center of Paris, in the "new town" of Saint-Quentin-en-Yvelines.

OverviewAI-generated

Guyancourt is a commune in France, situated within the Yvelines department and the arrondissement of Versailles. It is part of the Saint-Quentin-en-Yvelines area and shares borders with Versailles, Buc, Châteaufort, and Magny-les-Hameaux. The town’s earliest written record dates to 1065. Its administrative territory spans an area of 13 square kilometers, with an elevation above sea level of 167 meters.

The population of Guyancourt is 29,778, comprising 14,153 males and 14,480 females. The commune uses the postal code 78280 and operates in the Central European Summer Time zone. It is associated with the canton of Montigny-le-Bretonneux for electoral purposes. Guyancourt is twinned with the administrative body of Pegnitz.

Synthesized by Vinony from 53 facts across 7 sources: Wikidata, Open Meteo, Openweathermap, OpenStreetMap, GeoNames, Vinony graph, Geo. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.

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Place details

Locality
Guyancourt
Region
Île-de-France
Country
France
Population
31,989
Timezone
Europe/Paris

via OpenStreetMap · GeoNames

Air quality

35US AQIGood
PM2.5
5.9 µg/m³
PM10
10.6 µg/m³
As of 2026-08-11 03:00 · Open-Meteo

Key facts

French commune.name
Guyancourt
French commune.commune status
Commune
French commune.image
Léglise (5831605588).jpg
French commune.caption
The Church of Saint-Victor in Guyancourt
French commune.image coat of arms
Blason ville fr Guyancourt (Yvelines).svg
French commune.map size
270px
French commune.adjustable map
Guyancourt_map.png
French commune.map caption
Location (in red) within Paris inner and outer suburbs
French commune.arrondissement
Versailles
French commune.canton
Montigny-le-Bretonneux
French commune.INSEE
78297
French commune.postal code
78280
French commune.mayor
François Morton
French commune.term
2020–2026
French commune.intercommunality
Saint-Quentin-en-Yvelines
French commune.elevation m
138
French commune.area km2
13.0

via Wikipedia infobox

~6 min read

Encyclopedic overview

23 sections
Contents
  • Geography
  • History
  • Prehistoric
  • Antiquity
  • The religious life
  • Guyancourt and the Palace of Versailles
  • French revolution
  • The Franco-Prussian War of 1870
  • The 1900s
  • The end of the twentieth century
  • Population
  • Culture
  • International relations
  • Notable people
  • Economy
  • Industrial fabric
  • Education
  • Higher education and research
  • Primary and secondary schools
  • Transportation
  • See also
  • References
  • External links

Guyancourt () is a commune in the Yvelines department in the Île-de-France region in north-central France. It is located in the south-western suburbs of Paris, from the center of Paris, in the "new town" of Saint-Quentin-en-Yvelines.

==Geography== The commune of Guyancourt comprises several districts. The first of them, corresponding to the old village, is known as "le village", the others are named: Bouviers (Herdsmen), ancient hamlet of the village Les Garennes (the warrens) L'Europe (Europe) Le Pont du Routoir (the bridge over the retting pit) Les Saules (the Willows) Le Parc (the Park) Les Chênes (the Oaks) Villaroy (the recently constructed districts of the city)

Excerpted from Wikipedia’s “Guyancourt” article, available under the CC BY-SA 4.0 licence.

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On the map

2 mapped locations