Palaiseau
Subprefecture and commune
Palaiseau Town Hall
Coat of arms
Location (in red) within Paris inner and outer suburbs
Location of Palaiseau
Palaiseau Show map of France Palaiseau Show map of Île-de-France (region)
Coordinates: 48°42′52″N 2°14′45″E / 48.7145°N 2.2457°E / 48.7145; 2.2457
Country	France
Region	Île-de-France
Department	Essonne
Arrondissement	Palaiseau
Canton	Palaiseau
Intercommunality	CA Paris-Saclay
Government
• Mayor (2020–2026)	Grégoire De Lasteyrie[1]
Area 1	11.51 km2 (4.44 sq mi)
Population  (2021)[2]	34,893
• Density	3,000/km2 (7,900/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
INSEE/Postal code	91477 /91120
Elevation	47–159 m (154–522 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

Palaiseau (French pronunciation: [palɛzo]) is a commune in the southern suburbs of Paris, France. It is located 16.9 km (10.5 mi) from the centre of Paris. Palaiseau is a sub-prefecture of the Essonne department and the seat of the Arrondissement of Palaiseau.

Inhabitants of Palaiseau are known as Palaisiens.

Population

Education

As of 2016^[update], the primary schools in Palaiseau have 2,770 students. There are 12 public preschools (maternelles) and 10 public elementary schools.^[5]

Public secondary schools:^[6]

• Junior high schools: Collège César-Franck, Collège Charles-Péguy, Collège Joseph-Bara
• Senior high schools: Lycée professionnel Henri-Poincaré, Lycée Camille Claudel

The Institution Saint-Martin is a private school from preschool to high school.^[5]

Colleges and universities

ParisTech has a strong presence in Palaiseau, with four member institutes: the École Polytechnique (one of the most prestigious engineering schools in France), École nationale de la statistique et de l'administration économique, École nationale supérieure de techniques avancées, and Institut d'optique Graduate School which are now located in Palaiseau, on the Plateau de Saclay. The first three institutes are now grouped together in the Polytechnic Institute of Paris and the last one is a member of the Paris-Saclay University.

Transport

Palaiseau is served by 3 stations on Paris RER line B: Palaiseau, Palaiseau – Villebon and Lozère (this last station is the closest to École Polytechnique). The station Massy-Palaiseau (RER B, RER C and also TGV, the French high-speed rail) is located in the nearby town of Massy.

Twin towns

Palaiseau is twinned with Unna, Germany.^[7]