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Poissy

Commune of France

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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 Catholic, Huguenot 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.

01Location

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.

The Hôtel de Ville
The Hôtel de Ville

02History

The Hôtel de Ville was completed in 1937.

PSA Peugeot-Citroën
PSA Peugeot-Citroën

03Demographics

Historical population
YearPop.±% p.a.
1793 2,807,     
1800 2,437−2.00%
1806 2,500+0.43%
1821 2,643+0.37%
1831 2,850+0.76%
1836 2,880+0.21%
1841 3,925+6.39%
1846 4,261+1.66%
1851 4,300+0.18%
1856 4,951+2.86%
1861 5,101+0.60%
1866 4,973−0.51%
1872 5,047+0.25%
1876 5,063+0.08%
1881 5,600+2.04%
1886 6,403+2.72%
1891 6,432+0.09%
1896 6,981+1.65%
1901 7,406+1.19%
YearPop.±% p.a.
1906 7,959+1.45%
1911 8,709+1.82%
1921 10,135+1.53%
1926 11,298+2.20%
1931 12,386+1.86%
1936 12,502+0.19%
1946 13,375+0.68%
1954 15,046+1.48%
1962 28,548+8.34%
1968 33,613+2.76%
1975 37,497+1.57%
1982 36,389−0.43%
1990 36,745+0.12%
1999 35,841−0.28%
2007 37,109+0.44%
2012 37,597+0.26%
2017 37,388−0.11%
2023 40,983+1.54%
Source: EHESS and INSEE (1968-2023)

04Transport

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

Technoparc
Technoparc

05Economy

Main companies

Technoparc

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. Since 2024, the house and set of the reality competition Secret Story are located in the Technoparc.

06Highlights

Dimanche à Poissy by Meissonier, 1851
Dimanche à Poissy by Meissonier, 1851

07Culture

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

Collège Jean Jaurès
Collège Jean Jaurès

08Education

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.

Public secondary schools:

Private elementary schools:

09Hospital

Boulevard de Pirmasens in Poissy
Boulevard de Pirmasens in Poissy

10International Relation

Poissy is twinned with:

11People

Stadium Léo-Lagrange
Stadium Léo-Lagrange

12Sport

  • Skatepark
  • The golf of Béthemont
  • Stadium Léo-Lagrange, built in 1945
  • Swimming pool des Migneaux and swimming pool Saint-Exupéry
  • AS Poissy
Watch videos about PoissyExplainers and documentaries on YouTube (opens in a new tab)

Sources and credits

This article is adapted from the Wikipedia article Poissy, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.

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