# Cergy

> commune in Val-d'Oise, France

**Wikidata**: [Q193903](https://www.wikidata.org/wiki/Q193903)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Cergy)  
**Source**: https://4ort.xyz/entity/cergy

## Summary

Cergy is a commune in the Val-d'Oise department in the Île-de-France region of France, situated approximately 30 kilometers northwest of Paris. It serves as the prefecture of the arrondissement of Pontoise and is part of the Cergy-Pontoise urban agglomeration, a planned new town developed since the 1960s. The city is home to several higher education institutions and serves as a significant economic and administrative center in the northwestern suburbs of Paris.

## Key Facts

- **Location**: Cergy, Val-d'Oise department, Île-de-France region, France
- **Coordinates**: 49.052222°N latitude, 2.036111°E longitude
- **Administrative Status**: Prefecture of the arrondissement of Pontoise
- **Department**: Val-d'Oise (established January 1, 1968)
- **Former Department**: Seine-et-Oise (1790-1968)
- **Website**: https://www.cergy.fr/accueil
- **Population**: Approximately 70,906 residents (most recent figure from provided data)
- **Wikipedia Title**: Cergy
- **Wikidata Description**: commune in Val-d'Oise, France

## FAQs

**What administrative region is Cergy located in?**

Cergy is located in the Val-d'Oise department of France, which was established on January 1, 1968. Prior to this, the area belonged to the former department of Seine-et-Oise from 1790 until 1968. Cergy serves as the prefecture of the arrondissement of Pontoise.

**What is Cergy-Pontoise?**

Cergy-Pontoise is both a planned community (new town) in France and a French intercommunal structure. The planned community was founded on April 16, 1969, as part of the French government's initiative to develop new towns in the Paris region to accommodate population growth. The intercommunal structure was established on July 6, 1984, and serves as the administrative framework for cooperation between municipalities in the area.

**What educational institutions are located in Cergy?**

Cergy hosts several higher education institutions, including the École nationale supérieure de l'électronique et de ses applications (ENSEA), a graduate school founded in 1941 that specializes in electronics and its applications. Additionally, the Ecole supérieure d'informatique réseaux et systèmes d'information (ESIRS), focused on computer science, networks, and information systems, was established in 1988.

**What transportation infrastructure serves Cergy?**

Cergy is served by the Gare de Cergy-le-Haut railway station, which opened in 1994. This station provides rail connectivity to Paris and the surrounding Île-de-France region, making Cergy a commuter-friendly location for residents working in the capital.

**What companies are headquartered in Cergy?**

SPIE, a French company founded in 1900, is headquartered in Cergy. Additionally, Grass Valley, a company originally founded on April 7, 1959, and headquartered in Cergy, operates in the video and broadcast equipment industry. Grass Valley's country of incorporation is Canada.

**How is Cergy administratively divided?**

Cergy is divided into multiple cantons for electoral purposes. Prior to March 2015, the area was divided into canton of Cergy-Sud and canton of Cergy-Nord. Following the 2015 administrative reorganization, these were replaced by canton of Cergy-1 and canton of Cergy-2, both established on March 22, 2015.

**What is the administrative structure of Cergy?**

Cergy is classified as a commune of France, which is the lowest administrative territorial subdivision in France for municipalities. This structure has been in place since 1789, following the French Revolution.

## Why It Matters

Cergy matters as a significant urban center in the northwestern suburbs of Paris, representing France's post-war urban planning initiatives through the development of the Cergy-Pontoise new town. Since its establishment as a planned community in 1969, Cergy has grown from a small commune to a city of approximately 70,000 residents, becoming a major hub for higher education, commerce, and transportation in the Val-d'Oise department.

The city's importance stems from its role as a balancing center to Paris, helping to decentralize population and economic activity from the capital. Cergy's concentration of higher education institutions, including ENSEA (founded 1941) and ESIRS (founded 1988), makes it an educational center for the region, attracting students from across France and internationally. The presence of major companies like SPIE (founded 1900) and Grass Valley (founded 1959) demonstrates its significance as a business location.

As the prefecture of the arrondissement of Pontoise, Cergy serves important administrative functions for the surrounding region. Its transportation infrastructure, particularly the Gare de Cergy-le-Haut railway station opened in 1994, connects it directly to Paris and facilitates daily commuting for thousands of residents. This connectivity has been essential to Cergy's growth and its appeal as a residential location for Paris commuters.

The city's evolution from a small commune to a modern urban center reflects broader trends in French urban development and demonstrates how planned new towns can successfully create sustainable urban environments outside major metropolitan areas.

## Notable For

- **New Town Development**: Cergy-Pontoise is one of the five "new towns" (villes nouvelles) created in the Île-de-France region since the 1960s to manage Paris's population growth
- **Educational Hub**: Home to ENSEA (École nationale supérieure de l'électronique et de ses applications), a prestigious graduate school founded in 1941
- **Administrative Center**: Serves as the prefecture of the arrondissement of Pontoise
- **Corporate Headquarters**: Hosts the headquarters of SPIE (founded 1900), a major French company, and Grass Valley (founded 1959), a video/broadcast equipment company
- **Transportation Connectivity**: Features the Gare de Cergy-le-Haut railway station opened in 1994, providing direct links to Paris
- **Modern Urban Planning**: Represents successful French urban planning from the 1960s-1970s new town movement

## Body

### Geography and Location

Cergy is situated in the northwestern suburbs of Paris, located in the Val-d'Oise department of the Île-de-France region. The city lies at coordinates 49.052222°N latitude and 2.036111°E longitude, approximately 30 kilometers from the center of Paris. The commune occupies a strategic position in the Cergy-Pontoise urban area, which was developed as part of France's new town program.

The region's geography is characterized by its position in the valley of the Oise River, providing natural resources and transportation routes that have influenced settlement patterns. The area was historically part of the larger Seine-et-Oise department before the administrative reorganization of 1968 that created the current Val-d'Oise department.

### History and Development

The history of Cergy reflects the broader administrative evolution of French territorial organization. Prior to 1968, the area was part of Seine-et-Oise, one of the original departments created during the French Revolution in 1790. The creation of Val-d'Oise on January 1, 1968, marked a significant administrative transformation for the region.

The modern development of Cergy began with the establishment of Cergy-Pontoise as a planned community on April 16, 1969. This new town project was part of a deliberate government policy to create balanced urban centers outside Paris to accommodate population growth, reduce urban congestion, and promote regional development. The project aimed to create a self-sufficient urban center with residential, commercial, educational, and recreational facilities.

The Cergy-Pontoise intercommunal structure was established on July 6, 1984, providing a framework for cooperation among municipalities in the area. This administrative arrangement has facilitated coordinated planning, resource sharing, and collective decision-making for the region's development.

### Administrative Structure

Cergy functions as a commune of France, the fundamental territorial subdivision for municipalities in the French administrative system. This status, established during the French Revolution in 1789, grants the city local governance capabilities while remaining part of the broader departmental and regional structures.

The city serves as the prefecture (administrative center) of the arrondissement of Pontoise, meaning it hosts the administrative offices responsible for coordinating departmental services in that sub-division. This role underscores Cergy's importance as a regional administrative center.

For electoral purposes, Cergy is divided into cantons. The administrative reorganization of March 2015 transformed the previous canton of Cergy-Sud and canton of Cergy-Nord into canton of Cergy-1 and canton of Cergy-2, both established on March 22, 2015. This reorganization reflects the city's growth and the need for updated electoral representation.

### Economy and Business

Cergy has developed as an important economic center in the Val-d'Oise department, hosting several significant companies and organizations. SPIE, a French company founded in 1900, has its headquarters in Cergy. SPIE operates in various industrial and service sectors, contributing to local employment and economic activity.

Grass Valley, another company headquartered in Cergy, was founded on April 7, 1959. Originally incorporated in Canada, Grass Valley operates in the video and broadcast equipment industry, serving clients in the media and entertainment sector globally. The presence of these companies demonstrates Cergy's attractiveness as a business location.

The city's economic development has been supported by its planned community status, which included provisions for commercial and industrial zones. The Cergy-Pontoise urban area functions as a significant employment center for the region, with businesses benefiting from the area's transportation connectivity and access to a educated workforce.

### Education and Research

Cergy has established itself as an important center for higher education in the Île-de-France region. The École nationale supérieure de l'électronique et de ses applications (ENSEA) is a graduate school located in Cergy, founded in 1941. ENSEA specializes in electronics and its applications, providing engineering education and conducting research in collaboration with industry and academic partners.

The Ecole supérieure d'informatique réseaux et systèmes d'information (ESIRS), founded in 1988, represents another significant educational institution in Cergy. ESIRS focuses on computer science, networks, and information systems, preparing students for careers in the rapidly evolving technology sector.

These educational institutions attract students from across France and internationally, contributing to Cergy's intellectual and cultural vitality. The presence of graduate schools also supports local economic development by providing a skilled workforce and fostering innovation ecosystems.

### Transportation

Transportation infrastructure has been fundamental to Cergy's development as a suburban center connected to Paris. The Gare de Cergy-le-Haut railway station, which opened in 1994, provides direct rail connectivity to Paris through the Transilien rail network. This station serves as a vital link for commuters traveling to the capital for work or leisure.

The railway station's opening in 1994 marked a significant milestone in Cergy's accessibility, reducing travel times to Paris and making the city more attractive as a residential location. The transportation network continues to serve as a key factor in Cergy's ongoing development and appeal to residents and businesses.

### Demographics and Population

Cergy has experienced significant population growth since its development as a new town in the 1960s and 1970s. The population figures from the provided data show a consistent upward trend from approximately 61,708 residents to 70,906 residents across the recorded period. This growth reflects the success of the Cergy-Pontoise new town project in attracting residents seeking alternatives to Paris proper while maintaining access to the capital.

The city's population growth has been supported by the development of residential areas, educational institutions, and employment opportunities. Cergy's demographic profile includes students from the higher education institutions, families attracted by the quality of life in the suburban environment, and professionals working in Paris who prefer living in the quieter suburban setting.

### Cultural and Community Life

As a planned new town, Cergy was designed with attention to community facilities, green spaces, and cultural amenities. The city's urban planning incorporated provisions for cultural activities, sports facilities, and community services to create a balanced living environment.

Cergy participates in the "Concours des villes et villages fleuris," an annual French contest recognizing municipalities for their floral decorations and environmental quality. This participation reflects the city's commitment to maintaining attractive public spaces and quality of life for residents.

The city's position within the Cergy-Pontoise urban area provides residents with access to shared cultural and recreational facilities, including shopping centers, sports complexes, and entertainment venues. The intercommunal structure facilitates coordination on these matters across municipal boundaries.

## References

1. French National Directory of Representatives
2. [Comité d'Animation des Jumelages de l'Agglomération](https://www.cergy.fr/annuaire-des-associations/fiche-association/annuaire/comite-danimation-des-jumelag-1/?tx_eannuaires_pi1%5Bpointeur%5D=15&cHash=2a66580c364da33281a9589f769b6cd4)
3. [Jumelages franco-chinois](https://chine.in/guide/jumelages-franco_416.html)
4. [Relations internationales](https://www.cergypontoise.fr/relations-internationales)
5. [Sandre](http://www.sandre.eaufrance.fr/geo/CoursEau/H---0100)
6. Virtual International Authority File
7. BnF authorities
8. dataset of postal codes in France. 2018
9. INSEE code
10. [Code officiel géographique](https://www.insee.fr/fr/information/4316069)
11. [Source](https://data.iledefrance.fr/explore/dataset/villes_idf_label_vvf/download?format=csv)
12. répertoire géographique des communes
13. Freebase Data Dumps. 2013
14. Annuaire de service-public.fr
15. MusicBrainz
16. Recensement de la population 2015. National Institute of Statistics and Economic Studies. 2017
17. Populations légales 2016
18. Populations légales 2017
19. Populations légales 2018
20. Populations légales 2019
21. Populations légales 2020
22. Populations légales 2021
23. Populations de référence 2022
24. Populations de référence 2023
25. [Code officiel géographique. 2017](https://www.insee.fr/fr/information/2560698)
26. [Code officiel géographique](https://www.insee.fr/fr/information/3363419)
27. National Institute of Statistics and Economic Studies
28. GeoNames
29. [(3) Ville de Cergy | Facebook](https://www.facebook.com/villedecergy/)
30. [répertoire géographique des communes. 2015](https://wxs-telechargement.ign.fr/83edtfdyqte031y0ra49d2e3/telechargement/inspire/RGC-2015-01$RGC2015/file/RGC2015.7z)
31. [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)
32. Quora
33. [Ville de Cergy: Overview | LinkedIn](https://www.linkedin.com/company/ville-de-cergy/)
34. [archINFORM](https://www.archinform.net/service/wd_aiort.php)
35. National Library of Israel Names and Subjects Authority File