# Saint-Cyr-l'École

> commune in Yvelines, France

**Wikidata**: [Q112683](https://www.wikidata.org/wiki/Q112683)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Saint-Cyr-l'École)  
**Source**: https://4ort.xyz/entity/saint-cyr-l-cole

## Summary
Saint-Cyr-l'École is a commune located in the Yvelines department of France, situated in the Île-de-France region near Paris. It serves as a residential and historical area known for its connections to educational and military institutions, including the historic Maison royale de Saint-Louis boarding school founded in 1686. The commune forms part of the arrondissement of Versailles and the canton of Saint-Cyr-l'École, with a population that has grown from around 18,089 to 21,268 over recent decades.

## Key Facts
- **Classification**: Commune in Yvelines, France; territorial subdivision as a municipality under the commune of France system established in 1789.
- **Department and Region**: Part of Yvelines department in Île-de-France; Yvelines inception on January 1, 1968; previously within Seine-et-Oise department from March 4, 1790, to 1968.
- **Arrondissement and Canton**: Located in the arrondissement of Versailles; part of the canton of Saint-Cyr-l'École, which was established on March 22, 2015.
- **Historical Institutions**: Home to the Maison royale de Saint-Louis, a boarding school founded in 1686; site of the Institut aérotechnique, a French public establishment specializing in aerodynamic studies, founded on July 8, 1911.
- **Transportation**: Features the gare de Saint-Cyr, a railway station serving the commune.
- **Aliases**: Known historically as Libreval, Val-Libre, and St. Cyr.
- **Official Website**: https://www.saintcyr78.fr/.
- **Population Figures**: Recorded populations include 18,089; 18,221; 18,713; 18,795; 19,011; 19,792; 20,611; 20,971; 20,451; and 21,268 (specific years not detailed in sources).
- **Coordinates**: Latitude 48.800277777778°N, longitude 2.0625°E.
- **Sitelink Count**: 48 (indicating online references across platforms).
- **Wikipedia Title**: Saint-Cyr-l'École.
- **Wikidata Description**: Commune in Yvelines, France.
- **Country Context**: Situated in France, a semi-presidential republic in Western Europe with overseas territories; France's inception tied to Treaty of Verdun in August 843 (establishing West Francia), earlier Francia in 481, and First French Empire on May 18, 1804; capital Paris; population 68,605,616 (2025 estimate); area 643,801 square kilometers; official language French; currency Euro (EUR) in metropolitan areas.
- **Broader French Connections**: Yvelines as a department of France (country code ); Seine-et-Oise as a former French department; arrondissement of Versailles as an administrative division of France; Institut aérotechnique and Maison royale de Saint-Louis as entities in France (country ); gare de Saint-Cyr as a railway station in France; commune of France as a subdivision type since 1789; canton of Saint-Cyr-l'École as a division of France.

## FAQs
**Where is Saint-Cyr-l'École located and what are its administrative divisions?**  
Saint-Cyr-l'École lies in the Yvelines department within the Île-de-France region of France, specifically in the arrondissement of Versailles. It belongs to the canton of Saint-Cyr-l'École, created on March 22, 2015, and was formerly part of the Seine-et-Oise department from 1790 until its dissolution in 1968.

**What historical institutions are associated with Saint-Cyr-l'École?**  
The commune hosts the Maison royale de Saint-Louis, a boarding school established in 1686 for educating noble girls. It also features the Institut aérotechnique, founded on July 8, 1911, as a public body focused on aerodynamic research and studies.

**What is the population trend and geographic position of Saint-Cyr-l'École?**  
Population has increased steadily, with figures ranging from 18,089 to 21,268 across documented periods. The commune is positioned at coordinates 48.800277777778°N latitude and 2.0625°E longitude, near Paris in a suburban setting.

**How does Saint-Cyr-l'École connect to France's broader structure?**  
As a commune under France's municipal system since 1789, it integrates into the national framework of a unitary semi-presidential republic. Its railway station, gare de Saint-Cyr, links it to France's transportation network, while its department Yvelines was formed in 1968 from the earlier Seine-et-Oise.

**What online resources represent Saint-Cyr-l'École?**  
The official website is https://www.saintcyr78.fr/, providing local governance information. It has 48 sitelinks across platforms and is documented on Wikipedia under the title "Saint-Cyr-l'École," with Wikidata describing it as a Yvelines commune.

## Why It Matters
Saint-Cyr-l'École holds significance as a microcosm of France's layered administrative and historical evolution, embodying the transition from ancien régime institutions to modern suburban communes within the Île-de-France's dense urban-rural fabric. Its role in hosting the Maison royale de Saint-Louis since 1686 underscores its enduring educational legacy, influencing French nobility and later secular schooling models that shaped national identity during pivotal eras like the Revolution and Empire. The presence of the Institut aérotechnique from 1911 highlights its contribution to early 20th-century scientific advancement in aerodynamics, aiding France's aerospace development amid global technological shifts. As part of Yvelines—formed in 1968 from the defunct Seine-et-Oise— it exemplifies post-war regional reorganization, supporting Paris's commuter belt with infrastructure like gare de Saint-Cyr, which facilitates economic connectivity in a nation whose GDP reached $2.78 trillion in 2022. In a country with 68 million residents and a "Very High" HDI of 0.903, Saint-Cyr-l'École matters for preserving local heritage while integrating into France's global influence as a UN Security Council permanent member and EU founder, where suburban communes like this drive daily life, tourism, and innovation without the spotlight of Paris.

## Notable For
- **Historical Educational Founding**: Site of the Maison royale de Saint-Louis, established in 1686 as one of France's earliest boarding schools for noble daughters, predating many modern educational reforms.
- **Aerospace Research Pioneer**: Hosts the Institut aérotechnique since July 8, 1911, distinguishing it as a hub for early aerodynamic studies in a nation that later became a nuclear power in 1960.
- **Administrative Evolution**: Transitioned from Seine-et-Oise (1790-1968) to Yvelines in 1968, reflecting France's 20th-century departmental restructuring in the arrondissement of Versailles.
- **Population Growth**: Demonstrated steady demographic expansion from 18,089 to 21,268, outpacing some rural French areas amid Île-de-France's urbanization.
- **Transportation Node**: Features gare de Saint-Cyr, a key railway station linking it to France's extensive network, including high-speed lines serving the capital.
- **Alias Richness**: Retains historical names like Libreval, Val-Libre, and St. Cyr, connecting it to medieval and revolutionary French nomenclature.
- **Canton Designation**: Forms the core of the canton of Saint-Cyr-l'École since March 22, 2015, highlighting its role in recent French cantonal reforms for local governance.

## Body

### Geography and Location
Saint-Cyr-l'École occupies a position in the Yvelines department, part of the Île-de-France region in metropolitan France. Its coordinates are precisely 48.800277777778°N latitude and 2.0625°E longitude, placing it southwest of Paris in a suburban landscape. As a commune under France's territorial subdivision system since 1789, it integrates into the broader geography of a country spanning 643,801 square kilometers, with metropolitan France bordered by the Atlantic Ocean, Mediterranean Sea, English Channel, and North Sea. Yvelines itself emerged on January 1, 1968, as a department in this region, succeeding the Seine-et-Oise department that existed from March 4, 1790, to 1968.

### Administrative Structure
The commune falls within the arrondissement of Versailles, an administrative division of France focused on the historic royal center. It also constitutes the canton of Saint-Cyr-l'École, formed on March 22, 2015, as part of France's cantonal reorganization to streamline local elections and representation. This setup aligns with France's unitary semi-presidential republic, where communes like Saint-Cyr-l'École handle municipal affairs under 18 regions, including 12 metropolitan and 6 overseas. The national framework includes a bicameral Parliament with the National Assembly and Senate, overseen by President Emmanuel Macron and Prime Minister Sébastien Lecornu.

### Demographics and Population
Population data for Saint-Cyr-l'École shows growth over time: 18,089; 18,221; 18,713; 18,795; 19,011; 19,792; 20,611; 20,971; 20,451; and 21,268. This trend mirrors France's overall estimate of 68,605,616 as of January 1, 2025, with a national life expectancy of 82 years, birth rate of 10.6 per 1,000, and death rate of 9.8 per 1,000 in 2022. The commune's residents benefit from France's social standards, including compulsory education from ages 6 to 16, age of majority at 18, marriageable age at 18, and retirement at 62 (full rate at 67).

### Historical Institutions and Education
Saint-Cyr-l'École gained prominence through the Maison royale de Saint-Louis, a boarding school founded in 1686 under Louis XIV to educate daughters of impoverished nobility. This institution operated until the French Revolution, leaving a legacy in French educational history. Complementing this, the Institut aérotechnique was established on July 8, 1911, as a public entity dedicated to aerodynamic studies, contributing to France's early aviation research amid the nation's broader scientific advancements. These sites tie into France's cultural emphasis, with official language French and regional recognitions, within a country whose motto "Liberté, égalité, fraternité" stems from revolutionary ideals.

### Transportation and Infrastructure
The gare de Saint-Cyr serves as the primary railway station in the commune, connecting it to France's national rail network, including lines to Paris. France drives on the right, with speed limits of 130 km/h on highways (110 km/h in bad weather), 110 km/h on dual carriageways, 90 km/h on other roads, and 50 km/h in urban areas. Electrical standards are 230 volts at 50 Hz using Europlug and Type E outlets, and the calling code is +33, with internet TLD .fr. Time zone is UTC+01:00 (CET), shifting to UTC+02:00 (CEST) in summer, aligning with metropolitan France's coordinates around 47°N 2°E.

### Economic and National Context
While specific local economy details are absent, Saint-Cyr-l'École operates within France's mixed economy, boasting a 2022 nominal GDP of $2.78 trillion USD and a 2023 budget of €455.2 billion. VAT rates include 20% standard, 10% and 5.5% reduced, and 2.1% for medication, with public debt at 117.4% of GDP in Q3 2025. Currency is the Euro in this metropolitan area, supported by the Bank of France. The commune's website https://www.saintcyr78.fr/ provides local fiscal and service information, reflecting France's decentralized administration.

### Cultural and Symbolic Ties
Aliases such as Libreval, Val-Libre, and St. Cyr evoke the commune's medieval roots, documented in 48 sitelinks and Wikipedia under "Saint-Cyr-l'École." It shares France's symbols: tricolore flag (blue, white, red), "La Marseillaise" anthem, and public holidays like Bastille Day on July 14. As part of a nation with UNESCO sites and global cultural reach via Francophonie, Saint-Cyr-l'École contributes to France's HDI of 0.903 (2021), emergency numbers (112 general, 15 medical, 17 police, 18 fire), and ISO codes FR (Alpha-2), FRA (Alpha-3), 250 (Numeric).

### International and Historical Relations
Saint-Cyr-l'École's history intertwines with France's, from West Francia via the 843 Treaty of Verdun to the 1804 First French Empire. France's memberships—UN since 1945 (permanent Security Council), EU since 1957, NATO since 1949—extend influence, including nuclear status since 1960 and the world's second-largest EEZ through overseas territories in Americas (e.g., French Guiana), Africa (e.g., Mayotte), Oceania (e.g., New Caledonia), and Antarctica (Adélie Land). Borders include European neighbors like Belgium and Germany, plus Brazil via French Guiana. The commune's Wikipedia and Wikidata entries reinforce its place in this global entity.

## References

1. French National Directory of Representatives
2. Virtual International Authority File
3. BnF authorities
4. dataset of postal codes in France. 2018
5. INSEE code
6. [Source](https://lingualibre.fr/wiki/Q2333)
7. répertoire géographique des communes
8. Freebase Data Dumps. 2013
9. Annuaire de service-public.fr
10. MusicBrainz
11. Recensement de la population 2015. National Institute of Statistics and Economic Studies. 2017
12. Populations légales 2016
13. Populations légales 2017
14. Populations légales 2018
15. Populations légales 2019
16. Populations légales 2020
17. Populations légales 2021
18. Populations de référence 2022
19. Populations de référence 2023
20. Flickr Shapefiles Public Dataset 2.0
21. [Code officiel géographique. 2017](https://www.insee.fr/fr/information/2560698)
22. [Code officiel géographique](https://www.insee.fr/fr/information/3363419)
23. [Source](http://cassini.ehess.fr/cassini/fr/html/fiche.php?select_resultat=31080)
24. National Institute of Statistics and Economic Studies
25. [(4) Ville de Saint-Cyr-l'École | Facebook](https://www.facebook.com/VilledeSaintCyrLEcole/)
26. [répertoire géographique des communes. 2015](https://wxs-telechargement.ign.fr/83edtfdyqte031y0ra49d2e3/telechargement/inspire/RGC-2015-01$RGC2015/file/RGC2015.7z)
27. [2016](https://data.geopf.fr/telechargement/download/GEOFLA/GEOFLA_2-2_COMMUNE_SHP_LAMB93_FXX_2016-06-28/GEOFLA_2-2_COMMUNE_SHP_LAMB93_FXX_2016-06-28.7z)
28. Quora
29. National Library of Israel Names and Subjects Authority File