Chaumont
Arrondissement
Location within the region Grand Est
Country	France
Region	Grand Est
Department	Haute-Marne
No. of communes	158
Prefecture	Chaumont
Area	2,476.3 km2 (956.1 sq mi)
Population  (Jan. 2019)[1]	62,626
INSEE code	521

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

When the Haute-Marne department was created on 1800, the arrondissement of Chaumont was part of that original department.^[2]

The arrondissement of Chaumont is in the centre of the Haute-Marne department. It is bordered to the north by the Saint-Dizier arrondissement, to the east by the Vosges department, to the south by the Langres arrondissement, to the southwest by the Côte-d'Or department and to the west by the Aube department.

The arrondissement of Chaumont is the largest arrondissement of the department, with an area 2,476.3 km² (956.1 sq mi), but the second in population (64,970 inhabitants) with a population density of 26.2 inhabitants/km².^[3]

After the reorganisation of the cantons in France,^[4] cantons are not subdivisions of the arrondissements so they could have communes that belong to different arrondissements.

In the arrondissement of Chaumont, there are eight cantons and four of them do not have all their "communes" in the arrondissement:

The arrondissement of Chaumont has 159 communes; they are (with their INSEE codes)ː^[5]

The communes in the arrondissement with more inhabitants are:

• Arrondissements of the Haute-Marne department
• Communes of the Haute-Marne department

48°07′00″N 5°08′00″E / 48.1167°N 5.1333°E / 48.1167; 5.1333