title: Communauté d'agglomération Paris-Saclay
text: # Communauté d'agglomération Paris-Saclay
  
  48°42′29″N 02°10′33″E﻿ / ﻿48.70806°N 2.17583°E﻿ / 48.70806; 2.17583
  
  The Communauté d'agglomération Paris-Saclay (or CPS) is an administrative entity in the Essonne département, near Paris. The administrative center is Orsay. It was formed on 1 January 2016 by the merger of the former Communauté d'agglomération du Plateau de Saclay (CAPS) and the Communauté d'agglomération Europ'Essonne(E²). Its area is 185.9 $km^2.$ Its population was 314,169 in 2018.
  
  ## Geography
  
  ### Location
  
  The Communauté d'Agglomération Paris-Saclay is located at the north-west of the département of Essonne, on the plateau de Saclay. The altitude is between 47m (154') in Palaiseau and 172m (564') in Gif-sur-Yvette.
  
  ### Communes
  
  The Communauté d'Agglomération Paris-Saclay consists of the following communes:
  
  * Ballainvilliers
  * Bures-sur-Yvette
  * Champlan
  * Chilly-Mazarin
  * Épinay-sur-Orge
  * Gif-sur-Yvette
  * Gometz-le-Châtel
  * Igny
  * Linas
  * Longjumeau
  * Marcoussis
  * Massy
  * Montlhéry
  * Nozay
  * Orsay
  * Palaiseau
  * Saclay
  * Saint-Aubin
  * Saulx-les-Chartreux
  * Les Ulis
  * Vauhallan
  * Verrières-le-Buisson
  * Villebon-sur-Yvette
  * La Ville-du-Bois
  * Villejust
  * Villiers-le-Bâcle
  * Wissous
  
  ## History
  
  * At first, the syndicat intercommunal du plateau de Saclay (SIPS) was founded in 1988.
  * The 6 December 1991, it became the district du plateau de Saclay (DIPS).
  * It became a Communauté de communes then, in 2002, a Communauté d'agglomération.
  * Before, communes of Bièvres in Essonne, Buc, Châteaufort, Jouy-en-Josas and Les Loges-en-Josas in Yvelines was in the district.
  * In 2004, Gometz-le-Châtel integrates the CAPS.
  * In 2010, the CAPS adheres at the syndicat mixte Paris Métropole.
  
  ## Transportation
  
  ### Mass transit
  
  Passenger rail service is provided in the community by RATP and Transilien SNCF in several RER stations in the Paris-Saclay University campus :
  
  * Orsay-Ville station, RER B;
  * Massy-Palaiseau station, RER B & C;
  * Jouy-en-Josas station (HEC Paris), RER C and future T12;
  * Lozère - École Polytechnique station, RER B;
  
  And more in the Paris-Saclay and Versailles research campus :
  
  * Saint-Quentin-en-Yvelines station, RER C and Transilien line N and line U;
  * Versailles-Chantiers station, RER C and TER services.
  
  ### Rail
  
  The Paris-Saclay community has the LGV Atlantique high-speed rail line serving the Massy TGV station.
  
  ### Buses
  
  Transports in the Paris-Saclay community is managed by Paris-Saclay Mobilités and provided by Transdev and Keolis.
  
  Long-distance bus service is provided by BlaBlaBus and Flixbus at Massy-Palaiseau RER and SNCF TGV station.
  
  