Arrondissements of the Côtes-d'Armor department
The four arrondissements of the Côtes-d'Armor department are:
- Arrondissement of Dinan, (subprefecture: Dinan) with 67 communes. The population of the arrondissement was 105,848 in 2021.
- Arrondissement of Guingamp, (subprefecture: Guingamp) with 111 communes. The population of the arrondissement was 125,699 in 2021.
- Arrondissement of Lannion, (subprefecture: Lannion) with 57 communes. The population of the arrondissement was 100,259 in 2021.
- Arrondissement of Saint-Brieuc, (prefecture of the Côtes-d'Armor department: Saint-Brieuc) with 113 communes. The population of the arrondissement was 274,111 in 2021.