Arrondissement of Castelsarrasin

The arrondissement of Castelsarrasin is an arrondissement of France. It is part of the Tarn-et-Garonne "département". Its capital is the city of Castelsarrasin.
History.
When the Tarn-et-Garonne department was created in 1808, Castelsarrasin was one of the original "arrondissements" of the department.
Geography.
It is the westernmost of the "arrondissements" of the department, with an area of , the smallest in area of the department. It has 76,822 inhabitants and a population density of inhabitants/km².
The "arrondissement" is bordered to the north by the Lot (Occitanie) department, to the east by the "arrondissement" of Montauban, to the south by the Haute-Garonne (Occitanie) department, to the southwest by the Gers (Occitanie) department and to the northwest by the Lot-et-Garonne (Nouvelle-Aquitaine) department.
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". That is the case of the Beaumont-de-Lomagne, Castelsarrasin, Montech and the Pays de Serres Sud-Quercy cantons where some "communes" are in the "arrondissement" of Castelsarrasin and others in the "arrondissement" of Montauban. The following table shows the distribution of the "communes" in the cantons and "arrondissements":
Communes.
The "arrondissement" of Castelsarrasin has 103 "communes"; they are (with their INSEE codes):
The "communes" with more inhabitants in the "arrondissement" are: