Cergy

Cergy () is a commune in the French department of Val-d'Oise, to the northwest of Paris. It is located from the centre of Paris, in the "new town" of Cergy-Pontoise, created in the 1960s, of which it is the central and most populated commune.

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Cergy is a commune in France, situated within the Val-d'Oise department and the arrondissement of Pontoise. It serves as the capital of Val-d'Oise, as well as the cantons of Cergy-1, Cergy-2, and Cergy-Sud. The town is located in the Île-de-France region and borders the Oise river. Its postal codes are 95000 and 95800, and it has an area of 11.65 square kilometers.

The population of Cergy is 70,906, comprising 31,616 males and 33,561 females. The commune shares borders with Osny, Courdimanche, and Neuville-sur-Oise. It is twinned with Erkrath, Columbia, Liaoyang, and Porto-Novo. Cergy’s elevation above sea level is listed as 121 meters, while other data indicates an elevation of 95 meters. The local townhall is located in the city, which operates in the Europe/Paris timezone.

Synthesized by Vinony from 56 facts across 8 sources: Wikidata, Open Meteo, Openweathermap, OpenStreetMap, GeoNames, Firecrawl, 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: Cergy
Region: Île-de-France
Country: France
Population: 57,576
Timezone: Europe/Paris

via OpenStreetMap · GeoNames

Air quality

30US AQIGood

PM2.5: 5.2 µg/m³
PM10: 7.9 µg/m³

As of 2026-09-17 02:00 · Open-Meteo

Key facts

French commune.name: Cergy
French commune.commune status: commune
French commune.image coat of arms: Blason ville fr Cergy (Val-d'Oise).svg
French commune.image: Mairie cergy.JPG
French commune.caption: The old Hôtel de Ville (town hall)
French commune.map size: 270px
French commune.adjustable map: Cergy_map.png
French commune.map caption: Location (in red) within Paris inner and outer suburbs
French commune.arrondissement: Pontoise
French commune.canton: Cergy-1 and 2
French commune.INSEE: 95127
French commune.postal code: 95000
French commune.mayor: Jean-Paul Jeandon
French commune.term: 2020–2026
French commune.intercommunality: Cergy-Pontoise
French commune.elevation m: 25
French commune.elevation min m: 21
French commune.elevation max m: 121

via Wikipedia infobox

Official website

Site officiel de la ville de Cergy

Bienvenue sur le site officiel de la ville de Cergy. Retrouvez ici tous les services et démarches, les infos pratiques et les actualités de la commune.

ville-cergy.fr →

Link to the official site · 6,834 chars · not written by Vinony

Wikidata facts

Instance of: commune of France
Official name: Cergy
Country: France
Located in: arrondissement of Pontoise
Population: 70906
Area: 11.65
Elevation: 65
Time zone: UTC+01:00
Body of water: Oise
Capital of: canton of Cergy-Nord
Shares border with: Vauréal
Official website: www.cergy.fr/accueil
Image: Cergy Grand Centre Parc François Mitterrand©L Pages.jpg

Show 12 more facts

Commons category: Cergy
twinned administrative body: Thiès
postal code: 95800
topic's main category: Category:Cergy
male population: 31616
female population: 33561
associated electoral district: canton of Cergy-2
email address: mailto:[email protected]
contact page URL: www.cergy.fr/demarches-en-ligne/contact-avec-services-et-elus
phone number: +33-1-34-33-44-00
member of: Concours des villes et villages fleuris
native label: Cergy

Sources (12)

via Wikidata · CC0

~5 min read

Encyclopedic overview

14 sections

Contents

Name
Administration
Twin towns and sister cities
Demographics
Immigration
Port Cergy
Ham
Transport
Education
Security
In popular culture
See also
References
External links

Although neighbouring Pontoise is the official préfecture (capital) of the Val-d'Oise département, the préfecture building and administration, as well as the department council (conseil général), are located inside the commune of Cergy. The sous-préfecture building and administration, on the other hand, are located inside the commune of Pontoise.

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