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The city hall
The city hall
Coat of arms of Montigny-le-Bretonneux
Location (in red) within Paris inner and outer suburbs
Location (in red) within Paris inner and outer suburbs
Location of Montigny-le-Bretonneux
Montigny-le-Bretonneux is located in France
Montigny-le-Bretonneux is located in Île-de-France (region)
Coordinates: 48°46′16″N 2°02′00″E / 48.7711°N 2.0333°E / 48.7711; 2.0333Coordinates: 48°46′16″N 2°02′00″E / 48.7711°N 2.0333°E / 48.7711; 2.0333
 • Mayor (2020–2026) Lorrain Merckaert[1]
11.65 km2 (4.50 sq mi)
 (Jan. 2019)[2]
 • Density2,800/km2 (7,200/sq mi)
Time zoneUTC+01:00 (CET)
 • Summer (DST)UTC+02:00 (CEST)
INSEE/Postal code
78423 /78180
Elevation150–171 m (492–561 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

Montigny-le-Bretonneux (French pronunciation: [mɔ̃tiɲi lə bʁətɔnø] (listen)) 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, 24.5 kilometres (15.2 miles) from the centre of Paris, in the "new town" of Saint-Quentin-en-Yvelines, of which it is the central and most populated commune.


Montigny-le-Bretonneux, the 8th town of the Yvelines department by population, has 33,000 inhabitants and is the central and principal town of the Saint-Quentin-en-Yvelines district. It is situated at the heart of Yvelines, between the Vallée de Chevreuse and the Forest of Rambouillet in the south, and the towns of Versailles and Saint-Germain-en-Laye in the north.

The history of the town reflects that of a small traditional French village, devoted to agriculture. The growth of the new town in the 1970s actually initiates the change from the village of Montigny-le-Bretonneux (1292 inhabitants in 1970) to the town (10,063 in 1980).

The town is found 25 km (16 miles) south west of Paris, and 5 km (3 miles) from Versailles, and at the heart of an agglomeration of 150,000 people, of which Montigny is the largest commune.

After two decades of steady urbanization, Montigny-le-Bretonneux is now essentially completed, although the opportunity to create new housing is still there. In 2002, the State has decreed the end of the Operation of National Interest Statute establishing the new district of Saint-Quentin-en-Yvelines, whose seven member municipalities have opted for a new intercommunal principal, the “Community of Agglomeration”.

Montigny-le-Bretonneux has now passed the building phase — the frenzy of building that characterised the town is suitably balanced between neighbourhoods and business areas. Montigny has become a haven for St. Quentinois wishing to settle there. The parks were born in the 1970s and 1980s with the rise of the new town are and were in principle built to rehabilitate the economic heritage and to adapt to technological standards now imposed on businesses. Its economy is rooted primarily in the service sector (1,590 businesses). Furthermore, several major headquarters of international companies have settled in the city (for example; SAIPEM, BMW France et COGEMA).

Recent developments in Montigny-le-Bretonneux include the national velodrome built between 2011 and 2014, supported by the State, the French Cycling Federation, local authorities and a pool of business partners, and the Faculty of Medicine (UFR des sciences de la santé Simone Veil), part of the Versailles Saint-Quentin-en-Yvelines University.


Historical population
YearPop.±% p.a.
1793 265—    
1800 277+0.63%
1806 300+1.34%
1821 266−0.80%
1831 301+1.24%
1836 303+0.13%
1841 288−1.01%
1846 308+1.35%
1851 315+0.45%
1856 300−0.97%
1861 290−0.68%
1866 313+1.54%
1872 338+1.29%
1876 332−0.45%
1881 333+0.06%
1886 246−5.88%
1891 328+5.92%
1896 340+0.72%
YearPop.±% p.a.
1901 339−0.06%
1906 332−0.42%
1911 275−3.70%
1921 323+1.62%
1926 375+3.03%
1931 402+1.40%
1936 458+2.64%
1946 501+0.90%
1954 532+0.75%
1962 543+0.26%
1968 937+9.52%
1975 1,550+7.46%
1982 14,093+37.07%
1990 31,687+10.66%
1999 35,216+1.18%
2007 34,038−0.42%
2012 33,680−0.21%
2017 32,929−0.45%
Source: EHESS[3] and INSEE (1968-2017)[4]


The town organises annual events for which the community comes together to celebrate. Some are listed below:

  • Le Vide-greniers ; literally Empty Lofts ! This important occasion happens in spring on the avenue Nicolas About:[5]
  • La Journée de l’Europe : organised in May, this day celebrates all European values. All the schools, universities, businesses, homes and societies join to celebrate the diversity with song, food and dancing.
  • La Cavalcade – this is a huge event in the Montigny calendar in all quarters of the town. The municipal services and varying associations of Montigny come together for La cavalcade, perhaps known in Britain as the Montigny Carnival. Each carnival is based on a theme and is held every two years. The day is divided into three main events; the morning sees the town’s neighbourhoods come alive whilst the actual parade itself takes place in the afternoons. The evening sees spectacular performances at the Ferme de Manet.
  • La Vesprée takes places every other year when the Carnival does not. Similar to a large garden party, these soirées take place honouring educational and recreational aspects.
  • The Fire of Saint John is organized the same year as the vespers. At dusk, this evening celebrates the summer solstice. Everyone is invited to light the bonfire, whose flames are a celebration of light, and dance to the rhythm of a popular dance.
  • Day Auto-Moto Retro: this event organised by Montigny le Bretonneux and the Association of Old Pistons is normally held in early September. It is a parade of vintage vehicles whose owners are proud to present and discuss their "little miracles". These demonstrations are followed by a competition of elegance!
  • Marché de Noël : For three days the Ferme du Manet installs a fantasy village in a magical setting of trees and light. A winter wonderland of gifts and crafts is put on within the village.
  • Paris-Brest-Paris : A 1,200 km bicycle ride that takes place every 4 years, in late summer.


Montigny-le-Bretonneux is served by Saint-Quentin-en-Yvelines–Montigny-le-Bretonneux station on Paris RER line C, on the Transilien La Défense suburban rail line, and on the Transilien Paris-Montparnasse line N suburban rail line.


The community has nine neighbourhoods. They are Manet, Pas du Lac, Plan de l'Eglise, Plan de Troux Prés, Saint Quentin, Sourderie Nord, Sourderie Sud, and Village.[6]


15 schools serve école maternelle (preschool) students, and 15 schools serve école élémentaire (elementary) students. There are two groupes scolaires, or combined preschools and elementary schools.[7]

Public secondary schools:

Private schools:


The rainbow symbolises the radiance and vitality of the town. The dominant green colour symbolises the green space of the community, and the Ferme du Manet and leisure facilities in the town. The four white stones and lily are the historical reference; under l’ancien Regime, important boundaries marking royal properties were marked with a white stone, engraved with initials or a crest. At Montigny, the crest was a lily flower. Four were planted at a crossroads leading to Versailles, Trappes, Montigny and Bois d’Arcy.

International relations[edit]

Montigny-le-Bretonneux twinnings

Montigny-le-Bretonneux is twinned with:[12]

Curiously, the signpost pictured on the right implies that all the twin towns, be they in Germany, Romania, UK, Ireland, Spain or Italy, are in the same direction from Montigny.

See also[edit]


  1. ^ "Répertoire national des élus: les maires" (in French)., Plateforme ouverte des données publiques françaises. 13 September 2022.
  2. ^ "Populations légales 2019". The National Institute of Statistics and Economic Studies. 29 December 2021.
  3. ^ Des villages de Cassini aux communes d'aujourd'hui: Commune data sheet Montigny-le-Bretonneux, EHESS. (in French)
  4. ^ Population en historique depuis 1968, INSEE
  5. ^ call before :Avenue du Pas du Lac
  6. ^ "Présentation de la ville Archived 2013-11-04 at the Wayback Machine." Montigny-le-Bretonneux. Retrieved on 27 December 2011.
  7. ^ "Écoles maternelles-primaires." City of Montigny-le-Bretonneux. Retrieved on 27 December 2011.
  8. ^ Home. Collège Alberto Giacometti. Retrieved on September 4, 2016.
  9. ^ Home. Collège de La Couldre. Retrieved on September 4, 2016.
  10. ^ Home. Collège Les Prés. Retrieved on September 4, 2016.
  11. ^ Home. Collège Lycées Saint François d'Assise. Retrieved on September 4, 2016.
  12. ^ "Jumelages". (in French). Montigny-le-Bretonneux. Retrieved 2019-11-19.

External links[edit]