Arrondissement of Gex

The arrondissement of Gex is an arrondissement of France in the Ain department in the Auvergne-Rhône-Alpes region. Its capital is the city of Gex. It corresponds approximately to the historical region of the Pays de Gex.

History
When the Ain department was created on 1800, the arrondissement of Gex was not part of that original department; the arrondissement was created in 1815. In 1926, the arrondissement was eliminated but in 1933 it became again an arrondissement of the Ain department.

Geography
It is found in the northeastern part of the department with an area of , the smallest arrondissement of the department. It has 89,200 inhabitants and a density of  inhabitants/km².

The arrondissement of Gex is bordered to the north and northwest by the Jura department, to the northeast and east by Switzerland, to the southeast by the Haute-Savoie department and to the southwest by the  arrondissement of Nantua.

Composition
Cantons
After the reorganisation of the cantons in France, cantons are not subdivisions of the arrondissements so they could have communes that belong to different arrondissements.

In the arrondissement of Gex,  there are 3 cantons whose communes are in the arrondissement:   Gex (7 communes), Saint-Genis-Pouilly (4 communes) and Thoiry (16 communes). The canton of Bellegarde-sur-Valserine  has 1 commune in the arrondissement of Belley, 2 in Gex and 11 in the arrondissement of Nantua.

Communes
The arrondissement of Gex has 27 communes; they are (with their INSEE codes)ː

Cessy (01071)
Challex (01078)
Chevry (01103)
Chézery-Forens (01104)
Collonges (01109)
Crozet (01135)
Divonne-les-Bains (01143)
Échenevex (01153)
Farges (01158)
Ferney-Voltaire (01160)
Gex (01173)
Grilly (01180)
Léaz (01209)
Lélex (01210)
Mijoux (01247)
Ornex (01281)
Péron (01288)
Pougny (01308)
Prévessin-Moëns (01313)
Saint-Genis-Pouilly (01354)
Saint-Jean-de-Gonville (01360)
Sauverny (01397)
Ségny (01399)
Sergy (01401)
Thoiry (01419)
Versonnex (01435)
Vesancy (01436)

The communes with more inhabitants in the arrondissement are:

 INSEEcode  Commune  Population(2014)  Canton  Intercommunality 01173  Gex  11,141  Gex  Pays de Gex 01354  Saint-Genis-Pouilly  9,854  Saint-Genis-Pouilly  Pays de Gex 01160  Ferney-Voltaire  9,337  Saint-Genis-Pouilly  Pays de Gex 01143  Divonne-les-Bains  9,100  Gex  Pays de Gex 01313  Prévessin-Moëns  7,710  Saint-Genis-Pouilly  Pays de Gex 01419  Thoiry  6,061  Thoiry  Pays de Gex 01071  Cessy  4,797  Gex  Pays de Gex 01281  Ornex  4,303  Saint-Genis-Pouilly  Pays de Gex 01288  Péron  2,489  Thoiry  Pays de Gex 01435  Versonnex  2,170  Gex  Pays de Gex

Related pages
 Arrondissements of the Ain department
 List of arrondissements of France

References

Gex