The Côtes-d'Armor department in northwestern France comprises 373 communes, the smallest administrative units in the French territorial system. A complete list of these communes records names, INSEE codes and basic data used by public services and statisticians. Côtes-d'Armor itself is one of the departments of Brittany; see the department entry for general context (Côtes-d'Armor) and the institutional concept of a French département.
Administrative role and local government
Each commune is governed by a municipal council and a mayor elected by council members. Responsibilities typically include civil registry (births, marriages, deaths), local planning, primary schools, basic roads and local services. Communes range from small hamlets with a few dozen inhabitants to larger towns with municipal administrations capable of broader public works and cultural programming.
Geography and characteristics
The communes of Côtes-d'Armor display geographic variety: coastal fishing ports, braided river valleys, inland agricultural villages and small islands. Many are rural in character, with dispersed settlement patterns, while a handful concentrate population and services. Local identity often remains strong at the commune level, reflected in festivals, parish enclosures and place names in both French and Breton languages.
History and territorial change
Communes in France were created during the Revolution to replace older parishes and seigneuries; their borders have been stable in some areas and changing in others. Since the early 21st century there has been a trend toward voluntary mergers and the creation of "communes nouvelles" to pool resources, improve administration and meet modern service demands while preserving local identity.
Intercommunal cooperation
To manage services that exceed the capacity of individual communes, local authorities participate in intercommunal structures (communautés de communes, communautés d'agglomération). These entities coordinate economic development, waste management, transport and major infrastructure, allowing small communes to share costs and planning while retaining municipal councils.
Notable communes and observations
Among the department's better-known communes are its prefecture and larger towns, historic ports and island communities. Towns such as Saint-Brieuc or Lannion act as service and cultural centres, while coastal communes preserve maritime traditions. For details on specific localities and their boundaries consult the regional lists and official registers (communes list or the department page at Côtes-d'Armor).
- Administrative unit: commune (basic local government)
- Number in department: 373
- Common arrangements: intercommunal cooperation and occasional mergers
- Cultural note: bilingual French–Breton place names are common