Arrondissement of Gex


The arrondissement of Gex is an arrondissement of France in the Ain department in the Auvergne-Rhône-Alpes region. It approximately corresponds to the historical region of the Pays de Gex. It has 27 communes. Its population is 102,027, and its area is.

Composition

The communes of the arrondissement of Gex, and their INSEE codes, are:
  1. Cessy
  2. Challex
  3. Chevry
  4. Chézery-Forens
  5. Collonges
  6. Crozet
  7. Divonne-les-Bains
  8. Échenevex
  9. Farges
  10. Ferney-Voltaire
  11. Gex
  12. Grilly
  13. Léaz
  14. Lélex
  15. Mijoux
  16. Ornex
  17. Péron
  18. Pougny
  19. Prévessin-Moëns
  20. Saint-Genis-Pouilly
  21. Saint-Jean-de-Gonville
  22. Sauverny
  23. Ségny
  24. Sergy
  25. Thoiry
  26. Versonnex
  27. Vesancy

History

The arrondissement of Gex was created in 1800, disbanded in 1926 and restored in 1933. At the January 2017 reorganization of the arrondissements of Ain, it lost two communes to the arrondissement of Nantua.
As a result of the reorganisation of the cantons of France which came into effect in 2015, the borders of the cantons are no longer related to the borders of the arrondissements. The cantons of the arrondissement of Gex were, as of January 2015:
  1. Collonges
  2. Ferney-Voltaire
  3. Gex

Pays de Gex

The Pays de Gex was a part of the County of Geneva during the High Middle Ages. It is notable for the fact that it changed hands between Switzerland, the Duchy of Savoy and France several times. The final decision about its political affiliation was made by the Treaty of [Paris (1815)], which split it between France and Switzerland. The French part is now the Arrondissement of Gex, while the Swiss part is now the northwestern part of the Canton of Geneva.