The arrondissement of Châlons-en-Champagne is an arrondissement of France, in the Marne department, Grand Est region. Its capital, and prefecture of the department, is the city of Châlons-en-Champagne.

History
When the Marne department was created on 1800, the arrondissement of Châlons-en-Champagne, with the name Châlons-sur-Marne, was part of that original department.

Geography
The arrondissement of Châlons-en-Champagne is the central arrondissements of the Marne department. It is bordered to the north by the arrondissement of Reims and, for a short distance, by the Ardennes department; to the northeast by the Sainte-Menehould arrondissement; to the southeast and south by the Vitry-le-François arrondissement; and to the west by the Épernay arrondissement.

The arrondissement of Châlons-en-Champagne is the second largest arrondissement of the department in area, , and the third in population (103,110 inhabitants) with a population density of  inhabitants/km².

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 Châlons-en-Champagne, there are six cantons and three of them do not have all their "communes" in the arrondissement:

 Argonne Suippe et Vesle (5101) (partly)
 Châlons-en-Champagne-1 (5103)
 Châlons-en-Champagne-2 (5104)
 Châlons-en-Champagne-3 (5105) (partly)
 Mourmelon-Vesle et Monts de Champagne (5110) (partly)
 Vertus-Plaine Champenoise (5122) (partly)

Communes
The arrondissement of Châlons-en-Champagne has 100 communes; they are (with their INSEE codes)ː

 Aigny (51003)
 Athis (51018)
 Aulnay-sur-Marne (51023)
 Bergères-lès-Vertus (51049)
 Billy-le-Grand (51061)
 Bouy (51078)
 Breuvery-sur-Coole (51087)
 Bussy-Lettrée (51099)
 Bussy-le-Château (51097)
 Cernon (51106)
 Chaintrix-Bierges (51107)
 Champigneul-Champagne (51117)
 Cheniers (51146)
 Cheppes-la-Prairie (51148)
 Chepy (51149)
 Cherville (51150)
 Châlons-en-Champagne (51108)
 Clamanges (51154)
 Compertrix (51160)
 Condé-sur-Marne (51161)
 Coolus (51168)
 Coupetz (51178)
 Coupéville (51179)
 Courtisols (51193)
 Cuperly (51203)
 Dampierre-au-Temple (51205)
 Dampierre-sur-Moivre (51208)
 Fagnières (51242)
 Faux-Vésigneul (51244)
 Francheville (51259)
 Germinon (51268)
 Givry-lès-Loisy (51273)
 Isse (51301)
 Jonchery-sur-Suippe (51307)
 Juvigny (51312)
 Jâlons (51303)
 L'Épine (51231)
 La Cheppe (51147)
 La Veuve (51617)
 Le Fresne (51260)
 Les Grandes-Loges (51278)
 Livry-Louvercy (51326)
 Loisy-en-Brie (51327)
 Mairy-sur-Marne (51339)
 Marson (51354)
 Matougues (51357)
 Moivre (51371)
 Moncetz-Longevas (51372)
 Mourmelon-le-Grand (51388)
 Mourmelon-le-Petit (51389)
 Nuisement-sur-Coole (51409)
 Omey (51415)
 Pierre-Morains (51430)
 Pocancy (51435)
 Pogny (51436)
 Poix (51438)
 Recy (51453)
 Rouffy (51469)
 Saint-Germain-la-Ville (51482)
 Saint-Gibrien (51483)
 Saint-Hilaire-au-Temple (51485)
 Saint-Hilaire-le-Grand (51486)
 Saint-Jean-sur-Moivre (51490)
 Saint-Mard-lès-Rouffy (51499)
 Saint-Martin-aux-Champs (51502)
 Saint-Martin-sur-le-Pré (51504)
 Saint-Memmie (51506)
 Saint-Pierre (51509)
 Saint-Quentin-sur-Coole (51512)
 Saint-Étienne-au-Temple (51476)
 Sainte-Marie-à-Py (51501)
 Sarry (51525)
 Sogny-aux-Moulins (51538)
 Somme-Suippe (51546)
 Somme-Vesle (51548)
 Souain-Perthes-lès-Hurlus (51553)
 Soudron (51556)
 Soulières (51558)
 Suippes (51559)
 Thibie (51566)
 Togny-aux-Bœufs (51574)
 Trécon (51578)
 Vadenay (51587)
 Val-des-Marais (51158)
 Vatry (51595)
 Vaudemange (51599)
 Vert-Toulon (51611)
 Vertus (51612)
 Villeneuve-Renneville-Chevigny (51627)
 Villers-le-Château (51634)
 Villeseneux (51638)
 Vitry-la-Ville (51648)
 Voipreux (51651)
 Vouzy (51655)
 Vraux (51656)
 Vélye (51603)
 Vésigneul-sur-Marne (51616)
 Écury-le-Repos (51226)
 Écury-sur-Coole (51227)
 Étréchy (51239)

The communes in the arrondissement with more inhabitants are:

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

References

Chalons-en-Champagne