The arrondissement of Gex is an

arrondissement An arrondissement (, , ) is any of various administrative divisions of France, Belgium, Haiti, and certain other Francophone countries, as well as the Netherlands. Europe France The 101 French departments are divided into 342 ''arrondissem ...

of France in the

Ain Ain (, ; ) is a French department in the Auvergne-Rhône-Alpes region, Eastern France. Named after the Ain river, it is bordered by the Saône and Rhône rivers. Ain is located on the country's eastern edge, on the Swiss border, where it ...

department in the

Auvergne-Rhône-Alpes Auvergne-Rhône-Alpes (; AURA) or ; or ; . is a Regions of France, region in southeast-central France created by the 2014 territorial reform of French regions; it resulted from the merger of Auvergne and Rhône-Alpes. The new region came into e ...

region In geography, regions, otherwise referred to as areas, zones, lands or territories, are portions of the Earth's surface that are broadly divided by physical characteristics (physical geography), human impact characteristics (human geography), and ...

. It approximately corresponds to the historical region of the Pays de Gex. It has 27

communes A commune is an alternative term for an intentional community. Commune or comună or comune or other derivations may also refer to: Administrative-territorial entities * Commune (administrative division), a municipality or township ** Communes of ...

. Its population is 102,027 (2021), and its area is .

Composition

The communes of the arrondissement of Gex, and their

INSEE code The INSEE code ( ) is a numerical indexing code used by the Institut national de la statistique et des études économiques (France), French National Institute for Statistics and Economic Studies (INSEE) to identify various entities, including c ...

s, are: #

Cessy Cessy () is a commune in the Ain department in eastern France. The area was first inhabited by two farming families in the eleventh century, and as the town has grown its agricultural heritage has remained a significant feature, with the pop ...

(01071) #

Challex Challex is a Communes of France, commune in the Ain Departments of France, department in eastern France. Population See also *Communes of the Ain department References

Communes of Ain Ain communes articles needing translation fr ...

(01078) # Chevry (01103) # Chézery-Forens (01104) # Collonges (01109) # Crozet (01135) #

Divonne-les-Bains Divonne-les-Bains (; Franco-Provençal, Arpitan: ''Digouona''), popularly known simply as Divonne, is a Communes of France, commune in the Ain Departments of France, department in the Auvergne-Rhône-Alpes Regions of France, region in Eastern Fr ...

(01143) #

Échenevex Échenevex () is a Communes of France, commune in the Ain Departments of France, department in eastern France. , it is the commune with the fifth highest median per capita income (€51,020 per year) in France.Farges (01158) #

Ferney-Voltaire Ferney-Voltaire () is a commune in the Ain department in the Auvergne-Rhône-Alpes region of eastern France. It lies between the Jura Mountains and the Swiss border; it forms part of the metropolitan area of Geneva. It is named for Voltaire, ...

(01160) # Gex (01173) # Grilly (01180) # Léaz (01209) #

Lélex Lélex (; ) is a commune in the department of Ain, eastern France. Mountain sports Lélex is known as the highest ski resort of the Jura Mountains (1680 m). Population See also *Communes of the Ain department The following is a list ...

(01210) #

Mijoux Mijoux is a commune and village in the Ain department in eastern France. Geography The village is situated in the upper section of the narrow Valserine valley, nestled between high limestone cliffs to the south-east that form the first antic ...

(01247) #

Ornex Ornex (; ) is a commune in the Ain department in eastern France. Geography It is located on the former N5 highway between the Jura mountains and the Swiss border. Located nine kilometres from Geneva, many inhabitants commute across the Sw ...

(01281) # Péron (01288) # Pougny (01308) #

Prévessin-Moëns Prévessin-Moëns () is a commune in the Department of Ain, in France. It is located in the western suburbs of Geneva. Geography The commune of Prévessin-Moëns is situated between the Jura mountains and the Alps, with a view of Mont Blan ...

(01313) #

Saint-Genis-Pouilly Saint-Genis-Pouilly (; ) is a Communes of France, commune in the Ain Departments of France, department within the Auvergne-Rhône-Alpes Regions of France, region of eastern France. It is located in the Pays de Gex, at the foot of the Jura Moun ...

(01354) # Saint-Jean-de-Gonville (01360) #

Sauverny Sauverny (; ) is a commune in the Ain department in eastern France. It is located between the Jura mountains in France and Lac Leman, bordering the Canton of Geneva, Switzerland. Population See also *Communes of the Ain department The ...

(01397) #

Ségny Ségny (), also written Segny, is a Communes of France, commune in the Ain Departments of France, department in eastern France. Ségny is situated in the east of the department, in a district of the Lake Geneva / River Rhône basin known as t ...

(01399) # Sergy (01401) # Thoiry (01419) # Versonnex (01435) # Vesancy (01436)

History

The arrondissement of Gex was created in 1800, disbanded in 1926 and restored in 1933.Historique de l'Ain
/ref> 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 The cantons of France () are territorial subdivisions of the France, French Republic's Departments of France, departments and Arrondissements of France, arrondissements. Apart from their role as organizational units in relation to certain aspect ...

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:Populations légales 2012: 01 Ain
INSEE # Collonges #

# Gex

Pays de Gex

The Pays de Gex (literally, ''land of Gex'') was a part of the

County of Geneva The County of Geneva, largely corresponding to the later Genevois province, originated in the tenth century, in the Burgundian Kingdom of Arles (Arelat) which fell to the Holy Roman Empire in 1032. History Several nobles had held the title of a ...

during the High Middle Ages. It is notable for the fact that it changed hands between

Switzerland Switzerland, officially the Swiss Confederation, is a landlocked country located in west-central Europe. It is bordered by Italy to the south, France to the west, Germany to the north, and Austria and Liechtenstein to the east. Switzerland ...

, the

Duchy of Savoy The Duchy of Savoy (; ) was a territorial entity of the Savoyard state that existed from 1416 until 1847 and was a possession of the House of Savoy. It was created when Sigismund, Holy Roman Emperor, raised the County of Savoy into a duchy f ...

and France several times. The final decision about its political affiliation was made by the

Treaty of Paris (1815) The Treaty of Paris of 1815, also known as the Second Treaty of Paris, was signed on 20 November 1815, after the defeat and the abdication of Napoleon (1815), second abdication of Napoleon Bonaparte. In February, Napoleon had escaped from his e ...

, 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 The Canton of Geneva, officially the Republic and Canton of Geneva, is one of the Cantons of Switzerland, 26 cantons of the Switzerland, Swiss Confederation. It is composed of forty-five Municipality, municipalities, and the seat of the governme ...

References

{{Coord, 46, 19, N, 6, 04, E, source:itwiki_type:adm3rd, display=title Gex