Article · Wikipedia archive · Last revised May 31, 2026

Poissy

Poissy is a commune in the Yvelines department in the Île-de-France region in north-central France. It is located in the western suburbs of Paris, 23.8 km (14.8 mi) from the centre of Paris. Inhabitants are called Pisciacais in French. With about 41,000 inhabitants, Poissy is the 5th most populated commune in Yvelines.

Last revised
May 31, 2026
Read time
≈ 4 min
Length
1,029 w
Citations
11
Source
Poissy
Coat of arms of Poissy
Location (in red) within Paris inner and outer suburbs
Location (in red) within Paris inner and outer suburbs
Map
Location of Poissy
Poissy
Show map of France
Poissy
Show map of Île-de-France (region)
Coordinates: 48°55′46″N 2°02′44″E / 48.9294°N 2.0456°E / 48.9294; 2.0456
CountryFrance
RegionÎle-de-France
DepartmentYvelines
ArrondissementSaint-Germain-en-Laye
CantonPoissy
IntercommunalityCU Grand Paris Seine et Oise
Government
 • Mayor (2022–2026) Sandrine Berno Dos Santos1
Area
1
13.28 km2 (5.13 sq mi)
Population
 (2023)2
40,983
 • Density3,086/km2 (7,993/sq mi)
Demonym(s)Pisciacais (masculine)
Pisciacaise (feminine)
Time zoneUTC+01:00 (CET)
 • Summer (DST)UTC+02:00 (CEST)
INSEE/Postal code
78498 /78300
Elevation17–171 m (56–561 ft)
(avg. 27 m or 89 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

Poissy (French: [pwasi] ) is a commune in the Yvelines department in the Île-de-France region in north-central France. It is located in the western suburbs of Paris, 23.8 km (14.8 mi) from the centre of Paris. Inhabitants are called Pisciacais in French. With about 41,000 inhabitants, Poissy is the 5th most populated commune in Yvelines.

Poissy is one of the oldest royal cities of Île-de-France, birthplace of Louis IX of France and Philip III of France, before being supplanted from the 15th century by Saint-Germain-en-Laye. In 1561, it was the site of a fruitless CatholicHuguenot conference, the Colloquy of Poissy.

The area was known for the early car maker Automobiles Gregoire, and since then a number of companies including Simca and Peugeot, have produced vehicles at the Poissy Plant. From 1961 until 1991 the Simca Poissy engine was made there.

Location

Poissy is located about 30 kilometres west of Paris, in the north-eastern part of the Yvelines, 8 kilometres west of Saint-Germain-en-Laye, and 23 kilometres north-west of Versailles, the departmental prefecture.

The city is limited to the east by the forest of Saint-Germain-en-Laye and to the west by the Seine.

History

The Hôtel de Ville source ↗

The Hôtel de Ville was completed in 1937.3

Demographics

Transport

Poissy is served by Poissy station on Paris RER line A and on the Transilien Paris-Saint-Lazare suburban rail line.

Economy

Main companies

PSA Peugeot-Citroën source ↗

Technoparc

Technoparc source ↗

Technoparc is a Business Park created in 1990, with the intention to facilitate the economic diversification of the city. It occupies about 66 acres on the northeast of Stellantis plant, bordering the neighbouring commune Achères. The Park welcomes 150 companies employing a total of 2,000 employees. It also hosts The Charles-de-Gaulle High School and The Training Centre for the Employees in Pharmacy (ACPPAV) gathering 1,500 high school students and students. Two business incubator, a heliport, the Chamber of Commerce of Yvelines-Val d'Oise, two hotels, a sports centre and a municipal technical centre are also located there.

Highlights

Dimanche à Poissy by Meissonier, 1851 source ↗
  • Villa Savoye, considered by many to be the seminal work of the Swiss architect Le Corbusier.
  • The "Noyau de Poissy" is a liquor based on macerated or distilled apricot pits, a local tradition since early 18th century.8

Culture

Museums

  • Musée du jouet, shows 800 games and toys dating between 1850 and 1950.
  • Musée d'art et d'histoire.

Cultural facilities

  • La salle Molière (theater);
  • Cinema;
  • Library Christine de Pizan;
  • Library André-Malraux.

Poissy in film

Education

Collège Jean Jaurès source ↗

Poissy has ten public preschools, ten public elementary schools, two junior high schools, two senior high schools, a combined junior-senior high school, along with a private preschool and elementary school.10

Public secondary schools:

  • Collège les Grands-Champs
    • SEGPA les Grands-Champs
  • Collège Jean Jaurès
  • Lycée Adrienne Bolland
  • Lycée Charles de Gaulle
  • Collège et Lycée Le Corbusier

Private elementary schools:

  • Institution Notre-Dame preschool and elementary school

Hospital

International Relation

Boulevard de Pirmasens in Poissy source ↗

Poissy is twinned with:

People

Sport

Stadium Léo-Lagrange source ↗
  • Skatepark
  • The golf of Béthemont
  • Stadium Léo-Lagrange, built in 1945
  • Swimming pool des Migneaux and swimming pool Saint-Exupéry
  • AS Poissy
See also

See also

References

References

  1. "Répertoire national des élus: les maires" (in French). data.gouv.fr, Plateforme ouverte des données publiques françaises. 13 September 2022.
  2. "Populations de référence 2023" (in French). National Institute of Statistics and Economic Studies. 18 December 2025.
  3. Base Mérimée: PA78000002, Ministère français de la Culture. (in French)
  4. Des villages de Cassini aux communes d'aujourd'hui: Commune data sheet Poissy, EHESS (in French).
  5. Population municipale entre 1968 et 2023, INSEE
  6. as of May 2026, Stellantis is not planning to close any plants. It is planning to discontinuate the car production in Poissy by the end of 2028, after which the facility will focus solely on manufacturing components, recycling, and building special-purpose vehicles (faz.net 22 May 2026 (German)
  7. [data.gouv.fr: Établissement FAURECIA SYSTEMES D'ECHAPPEMENT à POISSY (seen 26 May 2026)
  8. Noyau de Poissy website (in French)
  9. "French Blood (2015) - IMDb". IMDb.
  10. "Les établissements scolaires ." Poissy. Retrieved on September 2, 2016.
  11. "Ali Marhyar". Première (in French). Retrieved 29 June 2024.
External links