Canton of Chaumont-1

The canton of Chaumont-1 is an administrative division of the Haute-Marne department, northeastern France. It was created at the French canton reorganisation which came into effect in March 2015. Its seat is in Chaumont.

It consists of the following communes:
 * 1) Brethenay
 * 2) Chaumont (partly)
 * 3) Condes
 * 4) Euffigneix
 * 5) Jonchery
 * 6) Riaucourt
 * 7) Treix