Poissy () is a commune in the Yvelines department in the ÃÂle-de-France region in north-central France. It is located in the western suburbs of Paris, 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 ÃÂle-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 CatholicâÂÂHuguenot 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.
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 was completed in 1937.
Poissy is served by Poissy station on Paris RER line A and on the Transilien Paris-Saint-Lazare suburban rail line.
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.
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:
Poissy is twinned with: