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Agglomeration communities in France

An agglomeration community (French: communauté d'agglomération) is a government structure in France, created by the Chevènement Law of 1999. It is one of four forms of intercommunality, less integrated than a métropole or a communauté urbaine but more integrated than a communauté de communes. Agglomeration communities consist of a commune of at least 15,000 inhabitants (or a prefecture with less than 15,000 inhabitants) and its independent suburbs.

As of April 2018, there are 222 agglomeration communities in France (207 in metropolitan France and 15 in the overseas departments).[1] The population (as of 2015) of the agglomeration communities ranges from 352,112 inhabitants (CA Roissy Pays de France) to 30,146 inhabitants (CA Grand Verdun).

Several former communautés d'agglomération have been converted into communautés urbaines or métropoles, for instance those of Strasbourg, Rouen, Saint-Étienne and Caen.

List of communautés d'agglomérationEdit

Communautés d'agglomération with more than 200,000 inhabitantsEdit

Name Seat Number of communes Population (2015)[1]
CA Grand Annecy Annecy 34 205,214
CA Pays Basque Bayonne 158 312,178
CA Béthune-Bruay, Artois-Lys Romane Béthune 100 281,249
CA Cergy-Pontoise Cergy 13 207,503
CA Lens – Liévin Lens 36 245,036
CA Limoges Métropole Limoges 20 212,550
CA Lorient Agglomération Lorient 25 207,293
CA Mulhouse Alsace Agglomération Mulhouse 39 277,640
CA Nîmes Métropole Nîmes 39 261,754
CA Nord de La Réunion Saint-Denis 3 205,176
CA Paris-Saclay Orsay 27 315,498
CA Grand Paris Sud Seine-Essonne-Sénart Courcouronnes 24 350,953
CA Paris - Vallée de la Marne Torcy 12 229,695
CA Roissy Pays de France Roissy-en-France 42 352,112
CA Saint Germain Boucles de Seine Le Pecq 20 341,945
CA Saint-Quentin-en-Yvelines Trappes 12 231,606
CA Territoire de la Côte Ouest Le Port 5 217,619
CA Valence Romans Agglo Alixan 56 225,262
CA Val Parisis Beauchamp 15 273,000
CA Versailles Grand Parc Versailles 19 270,056

Other agglomeration communitiesEdit


  1. ^ a b BANATIC, France, Liste des groupements. Accessed 2018-04-25.

External linksEdit