Communauté d'agglomération du Pays de Gex is the communauté d'agglomération, an intercommunal structure, centred on the town of Gex.
It is located in the Ain department, in the Auvergne-Rhône-Alpes region, eastern France.
Created in 1995, the administrative seat is located in its namesake commune of Gex.
Its population was 98,257 in 2019, of which 13,121 lived in Gex proper.
[2] The communauté d'agglomération consists of the following 27 communes:[1][3]