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Communauté d'agglomération de Cergy-Pontoise
Country France
Region Île-de-France
Department Val-d'Oise, Yvelines
No. of communes 13
Established 2004
Seat Cergy
 • Total 84.2 km2 (32.5 sq mi)
Population (2014)
 • Total 205,742
 • Density 2,400/km2 (6,300/sq mi)
Website www.cergypontoise.fr

Cergy-Pontoise (French pronunciation: ​[sɛʁʒi pɔ̃twɑz]) is a new town and an agglomeration community in France, in the Val-d'Oise department, northwest of Paris on the river Oise. It owes its name to two of the communes that it covers, Cergy and Pontoise. Its population is 199,143 (2012), in an area of 84.2 km2.[1] Created in the 1970s, it became an agglomeration community in 2004.


As of 2017, the communauté d'agglomération Cergy-Pontoise consists of thirteen communes:[2]

Except Maurecourt, which is in the Yvelines department, all communes are part of the Val-d'Oise department.


Historical population

Since the establishment of the new agglomeration, the population has quadrupled over forty years.


In the 1960s, faced by the fast development of Paris and its suburbs, it was decided to control and balance it by creating several new cities around Paris.

To the north, the choice was made on the surroundings of Pontoise. The old city was to be integrated in a much larger unit, whose center would be Cergy, at the time not more than a village. From 1965, the establishment of the new city was to be done in several stages:

  • April 16, 1969: creation of the publicly owned "Établissement public d'aménagement" (EPA)
  • 1971: creation of the Syndicat communautaire d'aménagement (SCA).
  • August 11, 1972: official creation of the new city of Cergy-Pontoise, gathering fifteen communes (the eleven current ones, and Boisemont, Boissy-l'Aillerie, Méry-sur-Oise and Pierrelaye).
  • 1983: the law Rocard amended the new cities.
  • 1984: Syndicat d'agglomération nouvelle (SAN) replaces the SCA, four communes left the structure (the four mentioned above)
  • December 31, 2002: end of the mission and dissolution of the EPA, following the completion of the new city.
  • January 1, 2004: transformation of the SAN into a communauté d'agglomération.
  • 2004: Boisemont becomes the 12th commune of Cergy-Pontoise.

Public transport[edit]

Bus services are provided by the Stivo (formerly StAN).

Rail services are provided by both the SNCF and the RATP. Two RER lines begin within the new town.


Subaru France and Bandai France have their head office in Cergy Pontoise.[3]

Media appearances[edit]


Cergy-Pontoise is a sister city to the planned cities of


  1. ^ INSEE, CA de Cergy-Pontoise
  2. ^ INSEE, Établissement public de coopération intercommunale de Cergy-Pontoise
  3. ^ "Mentoins légales Archived October 3, 2011, at the Wayback Machine.." Bandai France. Retrieved on 6 July 2011. "21-23 rue du Petit Albi, 95808 CERGY-PONTOISE Cedex."
  4. ^ L'enfance d'une ville
  5. ^ a b c "Most Popular Titles With Location Matching "Cergy, Val-d'Oise, France"". Retrieved 2011-08-26. 

External links[edit]

Coordinates: 49°02′10″N 2°03′47″E / 49.03611°N 2.06306°E / 49.03611; 2.06306